ALLE Allegion Plc

Exhibit 1.1

Execution Version

Allegion US Holding Company Inc.

5.600% Senior Notes due 2034

Underwriting Agreement

May 21, 2024

BofA Securities, Inc.

Citigroup Global Markets Inc.

Wells Fargo Securities, LLC

As Representatives of the

several Underwriters listed

in Schedule 1 hereto

c/o BofA Securities, Inc.

One Bryant Park

New York, New York 10036

c/o Citigroup Global Markets Inc.

388 Greenwich Street

New York, New York 10013

c/o Wells Fargo Securities LLC

550 South Tryon Street, 5th Floor

Charlotte, North Carolina 28202

Ladies and Gentlemen:

Allegion US Holding Company Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters listed in Schedule 1 hereto (the “Underwriters”), for whom you are acting as representatives (the “Representatives”), $400,000,000 principal amount of its 5.600% Senior Notes due 2034 (the “Securities”). The Securities will be issued pursuant to the Indenture (the “Base Indenture”), to be dated as of the Closing Date, among the Company, Allegion plc, an Irish public limited company (the “Guarantor”), and U.S. Bank Trust Company, National Association, as supplemented by the First Supplemental Indenture to be dated as of the Closing Date (as defined below), among the Company, the Guarantor and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”) (the “Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), and will be guaranteed on an unsecured senior basis by the Guarantor (the “Guarantee”).

The Company and the Guarantor hereby confirm their agreement with the several Underwriters concerning the purchase and sale of the Securities, as follows:

The Company and the Guarantor have prepared and filed with the Securities and Exchange Commission (the “Commission”) under the Securities Act of 1933, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Securities Act”), a registration statement on Form S-3 (File No. 333-278323), including a prospectus, relating to the Securities. Such registration statement, as amended at the time it becomes effective, including the information, if any, deemed pursuant to Rule 430A, 430B or 430C under the Securities Act to be part of the registration statement at the time of its effectiveness (“Rule 430 Information”), is referred to herein as the “Registration Statement”; and as used herein, the term “Preliminary Prospectus” means each prospectus included in such registration statement (and any amendments thereto) before it becomes effective, any prospectus filed with the Commission pursuant to Rule 424(a) under the Securities Act and the prospectus included in the Registration Statement at the time of its effectiveness that omits Rule 430 Information, and the term “Prospectus” means the prospectus in the form first used (or made available upon request of purchasers pursuant to Rule 173 under the Securities Act) in connection with confirmation of sales of the Securities. Any reference in this underwriting agreement (this “Agreement”) to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include the documents incorporated by reference therein pursuant to Item 12 of Form S-3 under the Securities Act, as of the effective date of the Registration Statement or the date of such Preliminary Prospectus or the Prospectus, as the case may be, and any reference to “amend”, “amendment” or “supplement” with respect to the Registration Statement, any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents filed after such date under the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Exchange Act”) that are deemed to be incorporated by reference therein. Capitalized terms used but not defined herein shall have the meanings given to such terms in the Registration Statement and the Prospectus.

At or prior to 3:30 p.m. (New York City time) on the date of this Agreement, the time when sales of the Securities were first made (the “Time of Sale”), the Company and the Guarantor had prepared the following information (collectively, the “Time of Sale Information”): a Preliminary Prospectus dated May 21, 2024, and each “free-writing prospectus” (as defined pursuant to Rule 405 under the Securities Act) listed on Schedule 2 hereto.

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

(i) In the event that any Underwriter that is a Covered Entity (as defined below) becomes subject to a proceeding under a U.S. Special Resolution Regime (as defined below), the transfer from such Underwriter of this Agreement, and any interest and obligation in or under this Agreement, will be effective to the same extent as the transfer would be effective under the U.S. Special Resolution Regime if this Agreement, and any such interest and obligation, were governed by the laws of the United States or a state of the United States.

(ii) In the event that any Underwriter that is a Covered Entity or a BHC Act Affiliate (as defined below) of such Underwriter becomes subject to a proceeding under a U.S. Special Resolution Regime, Default Rights (as defined below) under this Agreement that may be exercised against such Underwriter are permitted to be exercised to no greater extent than such Default Rights could be exercised under the U.S. Special Resolution Regime if this Agreement were governed by the laws of the United States or a state of the United States.

(iii) As used in this Section 28:

“BHC Act Affiliate” has the meaning assigned to the term “affiliate” in, and shall be interpreted in accordance with, 12 U.S.C. § 1841(k).

“Covered Entity” means any of the following:

“Default Right” has the meaning assigned to that term in, and shall be interpreted in accordance with, 12 C.F.R. §§ 252.81, 47.2 or 382.1, as applicable.

“U.S. Special Resolution Regime” means each of (x) the U.S. Federal Deposit Insurance Act and the regulations promulgated thereunder and (y) Title II of the U.S. Dodd-Frank Wall Street Reform and Consumer Protection Act and the regulations promulgated thereunder.

29

If the foregoing is in accordance with your understanding, please sign and return to us, one counterpart for the Company, the Guarantor and you plus one for each counsel hereof, and upon the acceptance hereof by you, on behalf of each of the Underwriters, this Agreement and such acceptance hereof shall constitute a binding agreement between each of the Underwriters, the Company and the Guarantor. It is understood that your acceptance of this Agreement on behalf of each of the Underwriters is pursuant to the authority set forth in a form of agreement among Underwriters, the form of which shall be submitted to the Company for examination upon request, but without warranty on your part as to the authority of the signers thereof.

30

[SIGNATURE PAGE TO THE UNDERWRITING AGREEMENT]

[SIGNATURE PAGE TO THE UNDERWRITING AGREEMENT]

SCHEDULE 1

SCHEDULE 2

Time of Sale Information

SCHEDULE 3

Pricing Term Sheet

Pricing Term Sheet

Filed Pursuant to Rule 433

to Preliminary Prospectus dated May 21, 2024

Registration Statement No. 333-278323

Date: May 21, 2024

Allegion plc

(1) An explanation of the significance of ratings may be obtained from the rating agencies. Generally, rating agencies base their ratings on such material and information, and such of their own investigations, studies and assumptions, as they deem appropriate. The rating of the Notes should be evaluated independently from similar ratings of other securities. A credit rating of a security is not a recommendation to buy, sell or hold securities and may be subject to review, revision, suspension, reduction or withdrawal at any time by the assigning rating agency.

(2) We expect that delivery of the notes will be made against payment therefor on or about May 29, 2024, which is the fifth business day following the date of pricing of the notes (this settlement cycle being referred to as “T+5”). Under Rule 15c6-1 of the Exchange Act, trades in the secondary market generally are required to settle in two business days, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade notes on the date of pricing or the next four succeeding business days will be required, by virtue of the fact that the notes initially will settle in T+5, to specify an alternate settlement cycle at the time of any such trade to prevent a failed settlement and should consult their own advisors.

The Issuer has filed an effective registration statement with the U.S. Securities and Exchange Commission (SEC) for this offering and encourages investors to read it (including the accompanying prospectus, the Preliminary Prospectus and the information incorporated by reference therein) for more complete information about the Issuer and this offering. You may obtain these documents for free by visiting EDGAR on the SEC website at www.sec.gov. Alternatively, copies may also be obtained by contacting BofA Securities, Inc. at the following address: NC1-022-02-25, 201 North Tryon Street, Charlotte, NC 28255-0001, Attn: Prospectus Department, or by calling 1-800-294-1322, or by emailing dg.prospectus_requests@bofa.com, or Citigroup Global Markets Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717 or by telephone at 1-800-831-9146, or Wells Fargo Securities, LLC, 608 2nd Avenue South, Suite 1000, Minneapolis, MN 55402, Attn: WFS Customer Service, or by telephone at 1-800-645-3751 or by email at wfscustomerservice@wellsfargo.com.

This pricing term sheet is dated May 21, 2024. The information in this pricing term sheet supplements the preliminary prospectus supplement of the Issuer, dated May 21, 2024 (the “Preliminary Prospectus”), and supersedes the information in the Preliminary Prospectus to the extent it is inconsistent with the information contained therein. Financial information presented in the Preliminary Prospectus or incorporated by reference therein is deemed to have changed to the extent affected by the changes described herein. This pricing term sheet should be read together with the Preliminary Prospectus, including the documents incorporated by reference therein, before making a decision in connection with an investment in the Notes.

Any disclaimer or other notice that may appear below is not applicable to this communication and should be disregarded. Such disclaimer or notice was automatically generated as a result of this communication being sent by Bloomberg or another email system.

SCHEDULE 4

1. Electronic (Net roadshow) road show of the Company used in connection with the offering of the Securities

Exhibit 4.1

INDENTURE

Dated as of May 29, 2024

Among

ALLEGION PLC,

ALLEGION US HOLDING COMPANY INC.

THE GUARANTORS NAMED HEREIN

and

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION,

as Trustee

CERTAIN SECTIONS OF THIS INDENTURE

RELATING TO SECTIONS 310 THROUGH 318 INCLUSIVE,

OF THE TRUST INDENTURE ACT OF 1939

NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a part of this Indenture.

i

TABLE OF CONTENTS

ii

iii

iv

INDENTURE, dated as of May 29, 2024, among Allegion plc, a public limited company duly organized and existing under the laws of Ireland (herein called the “Company”), Allegion US Holding Company Inc., a corporation duly organized under the laws of the State of Delaware (“Allegion US”), each of the Guarantors named herein (the “Guarantors”) and U.S. Bank Trust Company, National Association, as Trustee (herein called the “Trustee”).

RECITALS

The Company and Allegion US have duly authorized the execution and delivery of this Indenture to provide for the issuance from time to time of debt securities (herein called the “Securities”), of the Company or Allegion US, as the case may be, to be issued in one or more series as in this Indenture provided.

The Guarantors have each duly authorized the execution and delivery of this Indenture to provide for the guarantees (the “Guarantees”) of the Securities as in this Indenture provided.

All things necessary to make this Indenture a valid and binding agreement of each of the Company, Allegion US and the Guarantors, in accordance with its terms, have been done.

NOW, THEREFORE, THIS INDENTURE WITNESSETH:

For and in consideration of the premises and the purchase of the Securities by the Holders (as defined herein) thereof, it is mutually agreed, for the benefit of each other and for the equal and proportionate benefit of all Holders of the Securities or of any series thereof, as follows:

ARTICLE I

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

Section 101. Definitions.

For all purposes of this Indenture, except as otherwise expressly provided or unless the context otherwise requires:

“Act,” when used with respect to any Holder, has the meaning specified in Section 104.

“Affiliate” means, with respect to any specified Person, any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control” when used with respect to any specified Person means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing.

“Agent” means any Registrar, co-registrar, Depositary Custodian, Paying Agent or additional paying agent.

“Applicable Procedures” means, with respect to a Depositary, as to any matter at any time, the policies and procedures of such Depositary, if any, that are applicable to such matter at such time.

“Bankruptcy Law” has the meaning specified in Section 501.

“Board of Directors” means the board of directors of the Issuer or any of the Guarantors, as the case may be, or any duly authorized committee of that Board of Directors or any director or directors and/or officer or officers to whom that Board of Directors or committee shall have duly delegated its authority.

“Board Resolution” means a copy of one or more resolutions certified by the Secretary or an Assistant Secretary of the Issuer or any of the Guarantors, as the case may be, to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification and delivered to the Trustee. Where any provision of this Indenture refers to action to be taken pursuant to a Board Resolution (including the establishment of any series of the Securities and the forms and terms thereof), such action may be taken by any officer or employee of the Issuer or any of the Guarantors authorized to take such action by the Board of Directors as evidenced by a Board Resolution.

“Business Day” means, when used with respect to any Place of Payment, unless otherwise specified as contemplated by Section 301, any day, other than a Saturday or Sunday, which is not a day on which the Trustee or banking institutions are authorized or obligated by law, regulation or executive order to close in that Place of Payment.

“Commission” means the U.S. Securities and Exchange Commission, from time to time constituted, created under the Exchange Act, or, if at any time after the execution of this Indenture such Commission is not existing and performing the duties now assigned to it under the Trust Indenture Act, then the body performing such duties at such time.

“Company” means the Person named as the “Company” in the first paragraph of this Indenture until a successor Person shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Company” shall mean such successor Person.

“Corporate Trust Office” means the office of the Trustee at which, at any particular time, its corporate trust business in respect of this Indenture shall be conducted (which office is located as of the date of this Indenture at U.S. Bank Trust Company, National Association, Attn: Global Corporate Trust Services, 190 S. LaSalle Street, Chicago, IL 60603 or at any other time at such other address as the Trustee may designate from time to time by notice to the Issuer, the Guarantors and the Holders).

“Covenant Defeasance” has the meaning specified in Section 1303.

“Custodian” has the meaning specified in Section 501.

2

“Default” means any event which is, or after notice or passage of time or both would be, an Event of Default.

“Defaulted Interest” has the meaning specified in Section 307.

“Defeasance” has the meaning specified in Section 1302.

“Depositary” means, with respect to Securities of any series issuable in whole or in part in the form of one or more Global Securities, a clearing agency registered under the Exchange Act that is designated to act as Depositary for such Securities as contemplated by Section 301.

“Depositary Custodian” means the Trustee, as custodian for the Depositary with respect to any Global Notes, or any successor entity thereto.

“DTC” has the meaning specified in Section 104.

“Event of Default” has the meaning specified in Section 501.

“Exchange Act” means the U.S. Securities Exchange Act of 1934 and any statute successor thereto, in each case as amended from time to time.

“Expiration Date” has the meaning specified in Section 104.

“GAAP” means generally accepted accounting principles in the United States (including, if applicable, International Financial Reporting Standards) as in effect from time to time.

“Global Security” means a Security that evidences all or part of the Securities of any series and bears the legend set forth in Section 202 (or such legend as may be specified as contemplated by Section 301 for such Securities).

“Guarantees” has the meaning specified in the second recital of this Indenture and shall include the guarantee set forth in Article XIV hereof.

“Guarantors” means the Initial Guarantors and any other Person who shall have become a Guarantor under this Indenture pursuant to Section 301 or 901, in each case unless and until a successor Person shall have been substituted for such Guarantor pursuant to the applicable provisions of this Indenture established pursuant to Section 301 or 901, at which time references to such Guarantor shall mean such successor person, provided that the term “Guarantor,” when used with respect to any Security or the Securities of any series, means only the Persons who shall from time to time be the guarantors of such Security or the Securities of such series, respectively, as contemplated by Article XIV.

“Guarantor Request” or “Guarantor Order” means a written request or order signed in the name of the Guarantors by any Officer of any Guarantor (or any Person designated in writing as authorized to execute and deliver Guarantor Requests and Guarantor Orders), and delivered to the Trustee.

“Holder” means a Person in whose name a Security is registered in the Security Register.

“Indenture” means this Indenture as originally executed and as it may from time to time be supplemented or amended by one or more indentures supplemental hereto entered into pursuant to the applicable provisions hereof, including, for all purposes of this Indenture and any such supplemental indenture, the provisions of the Trust Indenture Act that are deemed to be a part of and govern this Indenture and any such supplemental indenture, respectively. The term “Indenture” shall also include the terms of particular series of Securities established as contemplated by Section 301.

“Initial Guarantors” means the Persons listed on Schedule I.

“interest” means, when used with respect to an Original Issue Discount Security which by its terms bears interest only after Maturity, interest payable after Maturity.

3

“Interest Payment Date” means, when used with respect to any Security, the Stated Maturity of an installment of interest on such Security.

“Internal Revenue Code” means the U.S. Internal Revenue Code of 1986, as amended from time to time.

“Issuer” means, (i) the Company, in the case of Securities issued by the Company, and (ii) Allegion US, in the case of Securities issued by Allegion US.

“Issuer Request” or “Issuer Order” means a written request or order signed in the name of the Issuer by an Officer of the Issuer (or any Person designated in writing as authorized to execute and deliver Issuer Requests and Issuer Orders), and delivered to the Trustee.

“Maturity” means, when used with respect to any Security, the date on which the principal of such Security or an installment of principal becomes due and payable as therein or herein provided, whether at the Stated Maturity or by declaration of acceleration, call for redemption or otherwise.

“Notice of Default” means a written notice of the kind specified in Section 501.

“Officer” means the Chairman of the Board, any Vice Chairman, the Chief Executive Officer, the President, the Chief Financial Officer, the Chief Operating Officer, the Chief Accounting Officer, the Treasurer, any Assistant Treasurer, the Controller, the General Counsel, the Secretary or any Assistant Secretary of the Issuer or any of the Guarantors, as the case may be.

“Officer’s Certificate” means a certificate signed by any Officer of the Issuer or any of the Guarantors, as the case may be. An Officer’s Certificate of the Issuer may be combined with an Officer’s Certificate of any of the Guarantors if signed by an Officer of the Issuer and such Guarantor.

“Opinion of Counsel” means a written opinion of counsel, who may be counsel for the Issuer or for any of the Guarantors, or for both, or other counsel who shall be reasonably acceptable to the Trustee. Opinions of Counsel required to be delivered under this Indenture may have qualifications customary for opinions of the type required and counsel delivering such Opinions of Counsel may rely as to factual matters on certificates of the Issuer, any of the Guarantors or governmental or other officials customary for opinions of the type required.

“Original Issue Discount Security” means any Security which provides for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration of the Maturity thereof pursuant to Section 502.

“Outstanding” means, when used with respect to Securities, as of the date of determination, all Securities theretofore authenticated and delivered under this Indenture, except:

4

provided, however, that in determining whether the Holders of the requisite principal amount of the Outstanding Securities have given, made or taken any request, demand, authorization, direction, notice, consent, waiver or other action hereunder as of any date, (A) the principal amount of an Original Issue Discount Security which shall be deemed to be Outstanding shall be the amount of the principal thereof which would be due and payable as of such date upon acceleration of the Maturity thereof to such date pursuant to Section 502, (B) if, as of such date, the principal amount payable at the Stated Maturity of a Security is not determinable, the principal amount of such Security which shall be deemed to be Outstanding shall be the amount as specified or determined as contemplated by Section 301, (C) the principal amount of a Security denominated in one or more foreign currencies, composite currencies or currency units which shall be deemed to be Outstanding shall be the U.S. dollar equivalent, determined as of such date in the manner provided as contemplated by Section 301, of the principal amount of such Security (or, in the case of a Security described in clause (A) or (B) above, of the amount determined as provided in such clause), and (D) Securities owned by the Issuer, any of the Guarantors or any other obligor upon the Securities or any Affiliate of the Issuer, any of the Guarantors or such other obligor shall be disregarded and deemed not to be Outstanding, except that, in determining whether the Trustee shall be protected in relying upon any such request, demand, authorization, direction, notice, consent, waiver or other action, only Securities which a Responsible Officer actually knows to be so owned shall be so disregarded. Securities so owned which have been pledged in good faith may be regarded as Outstanding if the pledgee establishes to the satisfaction of the Trustee the pledgee’s right so to act with respect to such Securities and that the pledgee is not the Issuer, any of the Guarantors or any other obligor upon the Securities or any Affiliate of the Issuer, any of the Guarantors or such other obligor.

“Paying Agent” means any Person authorized by the Issuer to pay the principal of or premium, if any, or interest on any Securities on behalf of the Issuer or any of the Guarantors.

“Person” means any individual, corporation, partnership, limited liability company, joint venture, association, joint-stock company, trust, unincorporated organization or government or any agency or political subdivision thereof or any other entity.

“Place of Payment” means, subject to Section 1002, when used with respect to the Securities of any series, the place or places where the principal of and premium, if any, and interest on the Securities of such series are payable as specified as contemplated by Section 301.

“Predecessor Security” means, with respect to any particular Security, every previous Security evidencing all or a portion of the same debt as that evidenced by such particular Security; and, for the purposes of this definition, any Security authenticated and delivered under Section 306 in exchange for or in lieu of a mutilated, destroyed, lost or stolen Security shall be deemed to evidence the same debt as the mutilated, destroyed, lost or stolen Security.

“Redemption Date” means, when used with respect to any Security to be redeemed, the date fixed for such redemption by or pursuant to this Indenture.

“Redemption Price” means, when used with respect to any Security to be redeemed, the price at which it is to be redeemed pursuant to this Indenture.

“Regular Record Date” means, for the interest payable on any Interest Payment Date on the Securities of any series, the date specified for that purpose as contemplated by Section 301, whether or not a Business Day.

“Responsible Officer” when used with respect to the Trustee, means any officer of the Trustee with direct responsibility for the administration of this Indenture and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of such person’s knowledge of and familiarity with the particular subject.

5

“Securities” has the meaning specified in the first recital of this Indenture and more particularly means any Securities authenticated and delivered under this Indenture.

“Securities Act” means the U.S. Securities Act of 1933 and any statute successor thereto, in each case as amended from time to time.

“Security Register” and “Security Registrar” have the respective meanings specified in Section 305.

“Special Record Date” means, for the payment of any Defaulted Interest, a date fixed by the Issuer pursuant to Section 307.

“Specified Courts” has the meaning specified in Section 117.

“Stated Maturity” means, when used with respect to any Security or any installment of principal thereof or interest thereon, the date specified in such Security as the fixed date on which the principal of such Security or such installment of principal or interest is due and payable.

“Subsidiary” means any corporation, partnership, joint venture, limited liability company, association or other business entity of which more than 50% of the outstanding voting stock (or equivalent equity interest) is owned, directly or indirectly, by the Issuer or by one or more other Subsidiaries (or a combination thereof). For purposes of this definition, “voting stock” means with respect to any specified “person” (as that term is used in Section 13(d) of the Exchange Act), the capital stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

“Trust Indenture Act” means the U.S. Trust Indenture Act of 1939 as in force at the date as of which this Indenture was executed; provided, however, that in the event the Trust Indenture Act of 1939 is amended after such date, “Trust Indenture Act” means, to the extent required by any such amendment, the Trust Indenture Act of 1939 as so amended.

“Trustee” means the Person named as the “Trustee” in the first paragraph of this Indenture until a successor Trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall mean or include each Person who is then a Trustee hereunder, and if at any time there is more than one such Person, “Trustee” as used with respect to the Securities of any series shall mean only the Trustee with respect to Securities of such series.

“U.S. Government Obligation” has the meaning specified in Section 1304(1).

“Vice President” means, when used with respect to the Issuer, any of the Guarantors or the Trustee, any vice president, whether or not designated by a number or a word or words added before or after the title “vice president.”

Section 102. Compliance Certificates and Opinions.

Upon any application or request by the Issuer or the Guarantors to the Trustee to take any action under any provision of this Indenture, the Issuer or the Guarantors, or both, as the case may be, shall furnish to the Trustee such certificates and opinions as may be required under the Trust Indenture Act. Each such certificate or opinion shall be given in the form of an Officer’s Certificate, if to be given by an Officer of the Issuer or the Guarantors, or an Opinion of Counsel, if to be given by counsel, and shall comply with the requirements of the Trust Indenture Act and any other requirements set forth in this Indenture. Every certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (except for certificates provided for in Section 1004) shall include:

6

Section 103. Form of Documents Delivered to Trustee.

In any case where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or covered by only one document, but one such Person may certify or give an opinion with respect to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several documents.

Any certificate or opinion of an Officer of the Issuer or the Guarantors, or both, as the case may be, may be based, insofar as it relates to legal matters, upon a certificate or opinion of, or representations by, counsel, unless such Officer knows that the certificate or opinion or representations with respect to the matters upon which such Officer’s certificate or opinion is based are erroneous. Any such certificate or Opinion of Counsel may be based, insofar as it relates to factual matters, upon a certificate or opinion of, or representations by, an Officer or Officers of the Issuer or the Guarantors, or both, as the case may be, stating that the information with respect to such factual matters is in the possession of the Issuer or any of the Guarantors, or both, as the case may be, unless such counsel knows that the certificate or opinion or representations with respect to such matters are erroneous.

Where any Person is required to make, give or execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Indenture, they may, but need not, be consolidated and form one instrument.

Section 104. Acts of Holders; Record Dates.

Any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted by this Indenture to be given, made or taken by Holders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by an agent duly appointed in writing; and, except as herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Trustee and, where it is hereby expressly required, to the Issuer or the Guarantors. Such instrument or instruments (and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Holders signing such instrument or instruments. Proof of execution of any such instrument or of a writing appointing any such agent shall be sufficient for any purpose of this Indenture and, subject to Section 601, conclusive in favor of the Trustee, the Issuer and the Guarantors, if made in the manner provided in this Section 104.

Without limiting the generality of this Section, unless otherwise provided in or pursuant to this Indenture, (i) a Holder, including a Depositary or its nominee that is a Holder of a Global Security, may give, make or take, by an agent or agents duly appointed in writing, any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted in or pursuant to this Indenture to be given, made or taken by Holders, and a Depositary or its nominee that is a Holder of a Global Security may duly appoint in writing as its agent or agents members of, or participants in, such Depositary holding interests in such Global Security in the records of such Depositary; and (ii) with respect to any Global Security the Depositary for which is The Depository Trust Company (“DTC”), any consent or other action given, made or taken by an “agent member” of DTC by electronic means in accordance with the Automated Tender Offer Procedures system or other Applicable Procedures of, and pursuant to authorization by, DTC shall be deemed to constitute the Act of the Holder of such Global Security, and such Act shall be deemed to have been delivered to the Issuer and the Trustee upon the delivery by DTC of an “ agent’s message” or other notice of such consent or other action having been so given, made or taken in accordance with the Applicable Procedures of DTC.

7

The fact and date of the execution by any Person of any such instrument or writing may be proved in any manner which the Trustee reasonably deems sufficient. Where such execution is by a Person acting in a capacity other than such Person’s individual capacity, such certificate or affidavit shall also constitute sufficient proof of such Person’s authority. The fact and date of the execution of any such instrument or writing, or the authority of the Person executing the same, may also be proved in any other manner which the Trustee deems sufficient.

The ownership of Securities shall be proved by the Security Register.

Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any Security shall bind every future Holder of the same Security and the Holder of every Security issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be done by the Trustee, the Issuer or the Guarantors in reliance thereon, whether or not notation of such action is made upon such Security.

Each of the Issuer and the Guarantors may set any day as a record date for the purpose of determining the Holders of Outstanding Securities of any series entitled to give, make or take any request, demand, authorization, direction, notice, consent, waiver or other action provided or permitted by this Indenture to be given, made or taken by Holders of Securities of such series; provided that neither the Issuer nor the Guarantors may set a record date for, and the provisions of this paragraph shall not apply with respect to, the giving or making of any notice, declaration, request or direction referred to in the next paragraph. If any record date is set pursuant to this paragraph, the Holders of Outstanding Securities of the relevant series on such record date, and no other Holders, shall be entitled to take the relevant action, whether or not such Holders remain Holders after such record date; provided that no such action shall be effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the requisite principal amount of Outstanding Securities of such series on such record date. Nothing in this paragraph shall be construed to prevent the Issuer or the Guarantors from setting a new record date for any action for which a record date has previously been set pursuant to this paragraph (whereupon the record date previously set shall automatically and with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be construed to render ineffective any action taken by Holders of the requisite principal amount of Outstanding Securities of the relevant series on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Issuer or the Guarantors, as the case may be, at its own expense, shall cause notice of such record date, the proposed action by Holders and the applicable Expiration Date to be given to the Trustee in writing and to each Holder of Securities of the relevant series in the manner set forth in Section 106.

The Trustee may set any day as a record date for the purpose of determining the Holders of Outstanding Securities of any series entitled to join in the giving or making of (i) any Notice of Default, (ii) any declaration of acceleration referred to in Section 502, (iii) any request to institute proceedings referred to in Section 507(2) or (iv) any direction referred to in Section 511, in each case with respect to Securities of such series. If any record date is set pursuant to this paragraph, the Holders of Outstanding Securities of such series on such record date, and no other Holders, shall be entitled to join in such notice, declaration, request or direction, whether or not such Holders remain Holders after such record date; provided that no such action shall be effective hereunder unless taken on or prior to the applicable Expiration Date by Holders of the requisite principal amount of Outstanding Securities of such series on such record date. Nothing in this paragraph shall be construed to prevent the Trustee from setting a new record date for any action for which a record date has previously been set pursuant to this paragraph (whereupon the record date previously set shall automatically and with no action by any Person be cancelled and of no effect), and nothing in this paragraph shall be construed to render ineffective any action taken by Holders of the requisite principal amount of Outstanding Securities of the relevant series on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Trustee, at the Issuer’s expense, shall cause notice of such record date, the proposed action by Holders and the applicable Expiration Date to be given to the Issuer and the Guarantors in writing and to each Holder of Securities of the relevant series in the manner set forth in Section 106.

With respect to any record date set pursuant to this Section 104, the party hereto which sets such record dates may designate any day as the “Expiration Date” and from time to time may change the Expiration Date to any earlier or later day; provided that no such change shall be effective unless notice of the proposed new Expiration Date is given to the other party hereto in writing, and to each Holder of Securities of the relevant series in the manner set forth in Section 106, on or prior to 2:00 p.m. New York City time on the existing Expiration Date. If an Expiration Date is not designated with respect to any record date set pursuant to this Section 104, the party hereto which set such record date shall be deemed to have initially designated the 180th day after such record date as the Expiration Date with respect thereto, subject to its right to change the Expiration Date as provided in this paragraph.

8

Without limiting the foregoing, a Holder entitled hereunder to take any action hereunder with regard to any particular Security may do so with regard to all or any part of the principal amount of such Security or by one or more duly appointed agents each of which may do so pursuant to such appointment with regard to all or any part of such principal amount.

In addition to the foregoing, the Trustee agrees to accept and act upon notice, instructions or directions pursuant to this Indenture sent by unsecured e-mail, facsimile transmission or other similar unsecured electronic methods; provided, however, that (a) the party providing such written instructions, subsequent to such transmission of written instructions, shall provide the originally executed instructions or directions to the Trustee in a timely manner, and (b) such originally executed instructions or directions shall be signed by an authorized representative of the party providing such instructions or directions. The Trustee shall not be liable for any losses, liabilities, damages, fees, costs or expenses arising directly or indirectly from the Trustee’s conclusive reliance upon and compliance with such instructions notwithstanding that such instructions conflict or are inconsistent with a subsequent written instruction.

Section 105. Notices, Etc., to Trustee and Issuer or Guarantors.

Any request, demand, authorization, direction, notice, consent, waiver or Act of Holders or other document provided or permitted by this Indenture to be made upon, given or furnished to, or filed with,

Section 106. Notice to Holders; Waiver.

Where this Indenture provides for notice to Holders of any event, such notice shall be sufficiently given (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to each Holder affected by such event, at such Holder’s address as it appears in the Security Register, not later than the latest date, if any, and not

9

earlier than the earliest date, if any, prescribed for the giving of such notice. In any case where notice to Holders is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed, to any particular Holder shall affect the sufficiency of such notice with respect to other Holders. Where this Indenture provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Trustee, but such filing shall not be a condition precedent to the validity of any action taken in reliance upon such waiver.

In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice by mail, then such notification as shall be made with the approval of the Trustee shall constitute a sufficient notification for every purpose hereunder.

Where this Indenture provides for notice of any event to a Holder of a Global Security, such notice shall be sufficiently given if given to the Depositary for such Security (or its designee), pursuant to the Applicable Procedures of the Depositary, not later than the latest date, if any, and not earlier than the earliest date, if any, prescribed for the giving of such notice.

Section 107. Conflict with Trust Indenture Act.

If any provision of this Indenture limits, qualifies or conflicts with a provision of the Trust Indenture Act which is required under such Act to be a part of and govern this Indenture, the latter provision shall control. If any provision of this Indenture modifies or excludes any provision of the Trust Indenture Act which may be so modified or excluded, the latter provision shall be deemed to apply to this Indenture as so modified or to be excluded, as the case may be.

Section 108. Effect of Headings and Table of Contents.

The Article and Section headings herein, the Trust Indenture Act cross reference table, and the Table of Contents are for convenience only and shall not affect the construction hereof.

Section 109. Successors and Assigns.

All covenants and agreements in this Indenture by the Issuer or the Guarantors, as the case may be, shall bind their respective successors and assigns, whether so expressed or not. All agreements of the Trustee in this Indenture shall bind its successors and assigns, whether so expressed or not.

Section 110. Separability Clause.

In case any provision in this Indenture or in the Securities shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

Section 111. Benefits of Indenture.

Nothing in this Indenture or in the Securities, express or implied, shall give to any Person, other than the parties hereto and their successors hereunder and the Holders, any benefit or any legal or equitable right, remedy or claim under this Indenture, except as may otherwise be provided pursuant to Section 301 with respect to any Securities of a particular series or under this Indenture with respect to such Securities.

Section 112. Governing Law.

This Indenture, the Securities and the Guarantees shall be governed by, and construed in accordance with, the law of the State of New York.

10

Section 113. Legal Holidays.

In any case where any Interest Payment Date, Redemption Date or Stated Maturity of any Security, or any date on which a Holder has the right to convert such Holder’s Security, shall not be a Business Day at any Place of Payment, then (notwithstanding any other provision of this Indenture or of the Securities (other than a provision of any Security which specifically states that such provision shall apply in lieu of this Section 113)) payment of principal and premium, if any, or interest, or the Redemption Price or conversion of such Security, need not be made at such Place of Payment on such date, but may be made on the next succeeding Business Day at such Place of Payment with the same force and effect as if made on the Interest Payment Date or Redemption Date, or at the Stated Maturity, or on such conversion date.

Section 114. No Recourse Against Others.

No past, present or future director, officer, employee, incorporator or stockholder as such of the Issuer or any of the Guarantors shall not have any liability for any obligations of the Issuer or any such Guarantor under the Securities, the Guarantees or this Indenture or for any claim based on, in respect of or by reason of such obligations or their creation. By accepting a Security, each Holder shall waive and release all such liability. The waiver and release shall be part of the consideration for the issue of the Securities.

Section 115. WAIVER OF JURY TRIAL.

EACH OF THE ISSUER, THE GUARANTORS, THE TRUSTEE AND THE HOLDERS, BY THEIR ACCEPTANCE OF THE SECURITIES, HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING AS AMONG THE ISSUER, THE GUARANTORS AND/OR THE TRUSTEE ONLY ARISING OUT OF OR RELATING TO THIS INDENTURE, THE GUARANTEES OR THE SECURITIES.

Section 116. USA PATRIOT Act.

The parties hereto acknowledge that in order to help the United States government fight the funding of terrorism and money laundering activities, pursuant to Federal regulations that became effective on October 1, 2003 (Section 326 of the USA PATRIOT Act) all financial institutions are required to obtain, verify, record and update information that identifies each person establishing a relationship or opening an account. The parties to this Agreement agree that they will provide to the Trustee such information as it may request, from time to time, in order for the Trustee to satisfy the requirements of the USA PATRIOT Act, including but not limited to the name, address, tax identification number and other information that will allow it to identify the individual or entity who is establishing the relationship or opening the account and may also ask for formation documents such as articles of incorporation or other identifying documents to be provided.

Section 117. Consent to Jurisdiction.

Any legal suit, action or proceeding arising out of or based upon this Indenture or the transactions contemplated hereby may be instituted in the federal courts of the United States of America located in the City of New York or the courts of the State of New York in each case located in the City of New York (collectively, the “Specified Courts”), and each party hereto irrevocably submits to the non-exclusive jurisdiction of such courts in any such suit, action or proceeding. Service of any process, summons, notice or document by mail (to the extent allowed under any applicable statute or rule of court) to such party’s address set forth above shall be effective service of process for any suit, action or other proceeding brought in any such court. The parties hereto irrevocably and unconditionally waive any objection to the laying of venue of any suit, action or other proceeding in the Specified Courts and irrevocably and unconditionally waive and agree not to plead or claim any such suit, action or other proceeding has been brought in an inconvenient forum.

Section 118. No Adverse Interpretation of Other Agreements.

This Indenture may not be used to interpret any other indenture, loan or other agreement of the Issuer or any Guarantor or any Subsidiaries of thereof or of any other Person. Any such indenture, loan or other agreement may not be used to interpret this Indenture.

11

Section 119. Language of Notices, Etc.

Any request, demand, authorization, direction, notice, consent, waiver, other action or Act provided or permitted under this Indenture shall be in the English language, except that any published notice may be in an official language of the country of publication.

ARTICLE II

SECURITY FORMS

Section 201. Forms Generally.

The Securities of each series and the Guarantees thereof contemplated in Article XIV shall be in substantially such form or forms as shall be established by or pursuant to a Board Resolution of the Issuer or any of the Guarantors, as the case may be, or, subject to Section 303, set forth in, or determined in the manner provided in, an Officer’s Certificate pursuant to authority granted by one or more Board Resolutions of the Issuer or any of the Guarantors, as the case may be, or in one or more indentures supplemental hereto, in each case with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture, and may have such letters, numbers or other marks of identification and such legends or endorsements placed thereon as may be required to comply with applicable tax laws or the rules of any securities exchange or Depositary therefor or as may, consistently herewith, be determined by the Officer executing such Securities or Guarantees thereof, as evidenced by their execution thereof. If the form of Securities of any series or Guarantees thereof is established by action taken pursuant to a Board Resolution, a copy of an appropriate record of such action shall be certified by the Secretary or an Assistant Secretary of the Issuer or any of the Guarantors, as applicable, and delivered to the Trustee at or prior to the delivery of the Issuer Order contemplated by Section 303 for the authentication and delivery of such Securities. If all of the Securities of any series established by action taken pursuant to a Board Resolution are not to be issued at one time, it shall not be necessary to deliver a record of such action at the time of issuance of each Security of such series, but an appropriate record of such action shall be delivered at or before the time of issuance of the first Security of such series.

The definitive Securities shall be printed, lithographed or engraved on steel engraved borders or may be produced in any other manner, all as determined by the officers executing such Securities or Guarantees, as evidenced by their execution of such Securities.

Section 202. Form of Legend for Global Securities.

Unless otherwise specified as contemplated by Section 301 for the Securities evidenced thereby, every Global Security authenticated and delivered hereunder shall bear a legend in substantially the following form:

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (“DTC”) TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE REFERRED TO ON THE REVERSE HEREOF. TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.

12

Section 203. Form of Trustee’s Certificate of Authentication.

The Trustee’s certificates of authentication shall be in substantially the following form:

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

Dated:

ARTICLE III

THE SECURITIES

Section 301. Amount Unlimited; Issuable in Series.

The aggregate principal amount of Securities which may be authenticated and delivered under this Indenture is unlimited.

The Securities may be issued in one or more series. There shall be established in or pursuant to (a) a Board Resolution of the Issuer or pursuant to authority granted by one or more Board Resolutions of the Issuer and, subject to Section 303, set forth, or determined in the manner provided, in an Officer’s Certificate of the Issuer, or (b) one or more indentures supplemental hereto, prior to the issuance of Securities of any series:

13

14

There shall be established in or pursuant to a Board Resolution of any of the Guarantors and, subject to Section 303, set forth, or determined in the manner provided, in an Officer’s Certificate of such Guarantor, or established in one or more indentures supplemental hereto, prior to the issuance of Securities of any series, the provisions of the Guarantees with respect to the Securities of such series, if such provisions differ from those set forth in Section 1401.

All Securities of any one series shall be substantially identical except as to denomination and except as may otherwise be provided in or pursuant to the Board Resolution of the Issuer referred to above or pursuant to authority granted by one or more Board Resolutions of the Issuer and, subject to Section 303, set forth, or determined in the manner provided, in the Officer’s Certificate of the Issuer referred to above or in any such indenture supplemental hereto.

All Securities of any one series need not be issued at one time and, unless otherwise provided in or pursuant to the Board Resolution of the Issuer referred to above and, subject to Section 303, set forth, or determined in the manner provided, in the Officer’s Certificate of the Issuer referred to above or pursuant to authority granted by one or more Board Resolutions of the Issuer or in any such indenture supplemental hereto with respect to a series of Securities, additional Securities of a series may be issued, at the option of the Issuer, without the consent of any Holder, at any time and from time to time.

The terms of any Securities of a series may differ from the terms of other Securities of the same series, if and to the extent provided pursuant to this Section 301. The matters referenced in any or all of Clauses (1) through (25) above may be established and set forth or determined as aforesaid with respect to all or any specific Securities of a series (in each case to the extent permitted by the Trust Indenture Act).

15

If any of the terms of the series are established by action taken pursuant to a Board Resolution of the Issuer, a copy of an appropriate record of such action shall be certified by the Secretary or an Assistant Secretary of the Issuer and delivered to the Trustee at or prior to the delivery of the Officer’s Certificate setting forth the terms of the series. No Board Resolution or Officers’ Certificate may affect the Trustee’s own rights, duties or immunities under this Indenture or otherwise with respect to any series of Notes except as it may agree in writing.

Section 302. Denominations.

The Securities of each series shall be issuable only in registered form without coupons, unless otherwise specified in the applicable supplemental indenture, and only in such denominations as shall be specified as contemplated by Section 301. In the absence of any such specified denomination with respect to the Securities of any series, the Securities of such series shall be issuable in denominations of $1,000 and any integral multiple of $1,000 in excess thereof.

Section 303. Execution, Authentication, Delivery and Dating.

The Securities shall be executed on behalf of the Issuer by its Chairman of the Board, one of its Vice Chairmen, its Chief Executive Officer, its President, its Chief Financial Officer, its Principal Accounting Officer, its Controller, its Treasurer, one of its Vice Presidents or one of its Assistant Treasurers. The signature on the Securities may be manual or facsimile.

Securities bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Issuer shall bind the Issuer, notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Securities or did not hold such offices at the date of such Securities.

At any time and from time to time after the execution and delivery of this Indenture, the Issuer may deliver Securities of any series executed by the Issuer to the Trustee for authentication, together with an Issuer Order for the authentication and delivery of such Securities, and the Trustee in accordance with the Issuer Order shall authenticate and deliver such Securities. If the form or terms of the Securities of the series have been established by or pursuant to supplemental indentures or to one or more Board Resolutions or pursuant to authority granted by one or more Board Resolutions as permitted by Sections Section 201 and Section 301, in authenticating such Securities, and accepting the additional responsibilities under this Indenture in relation to such Securities, the Trustee shall be entitled to receive, and, subject to Section 601, shall be fully protected in relying upon, an Opinion of Counsel stating,

If such form or terms have been so established, the Trustee shall not be required to authenticate such Securities if the issue of such Securities pursuant to this Indenture will materially adversely affect the Trustee’s own rights, duties or immunities under the Securities and this Indenture or otherwise in a manner which is not reasonably acceptable to the Trustee.

16

Each Security shall be dated the date of its authentication.

No Security shall be entitled to any benefit under this Indenture or be valid or obligatory for any purpose unless there appears on such Security a certificate of authentication substantially in the form provided for herein executed by the Trustee by manual signature, and such certificate upon any Security shall be conclusive evidence, and the only evidence, that such Security has been duly authenticated and delivered hereunder. Notwithstanding the foregoing, if any Security shall have been authenticated and delivered hereunder but never issued and sold by the Issuer, and the Issuer shall deliver such Security to the Trustee for cancellation as provided in Section 309, for all purposes of this Indenture such Security shall be deemed never to have been authenticated and delivered hereunder and shall never be entitled to the benefits of this Indenture.

Section 304. Temporary Securities.

Pending the preparation of definitive Securities of any series, the Issuer may execute, and, upon Issuer Order, the Trustee shall authenticate and deliver, temporary Securities which are printed, lithographed, typewritten, mimeographed or otherwise produced, in any authorized denomination, substantially of the tenor of the definitive Securities of such series in lieu of which they are issued and with such appropriate insertions, omissions, substitutions and other variations as the Officer or Officers executing such Securities may determine, as evidenced by their execution thereof.

If temporary Securities of any series are issued, the Issuer will cause definitive Securities of such series to be prepared without unreasonable delay. After the preparation of definitive Securities of such series, the temporary Securities of such series shall be exchangeable for definitive Securities of such series upon surrender of the temporary Securities of such series at the office or agency of the Issuer in a Place of Payment for such series, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Securities of any series, the Issuer shall execute and the Trustee shall authenticate and deliver in exchange therefor one or more definitive Securities of the same series, of any authorized denominations and of like tenor and aggregate principal amount. Until so exchanged, the temporary Securities of any series shall in all respects be entitled to the same benefits under this Indenture as definitive Securities of such series and tenor.

Section 305. Registration, Registration of Transfer and Exchange.

The Issuer shall cause to be kept at the Corporate Trust Office of the Trustee a register (the register maintained in such office and in any other office or agency of the Issuer in a Place of Payment being herein sometimes collectively referred to as the “Security Register”) in which, subject to such reasonable regulations as it may prescribe, the Issuer shall provide for the registration of Securities and of transfers of Securities. The Trustee is hereby appointed “Security Registrar” for the purpose of registering Securities and transfers of Securities as herein provided.

Upon surrender for registration of transfer of any Security of a series at the office or agency of the Issuer in a Place of Payment for such series, the Issuer shall execute (or through book-entry transfer in the case of Global Securities), and the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Securities of the same series, of any authorized denominations and of like tenor and principal amount.

At the option of the Holder, Securities of any series may be exchanged for other Securities of the same series, of any authorized denominations and of like tenor and principal amount, upon surrender of the Securities to be exchanged at such office or agency. Whenever any Securities are so surrendered for exchange, the Issuer shall execute (or through book-entry transfer in the case of Global Securities), and the Trustee shall authenticate and deliver, the Securities, which the Holder making the exchange is entitled to receive.

All Securities issued upon any registration of transfer or exchange of Securities shall be the valid obligations of the Issuer and any Guarantees of such Securities shall be the valid obligations of the respective Guarantors, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Securities and any Guarantees, respectively, surrendered upon such registration of transfer or exchange.

17

Every Security presented or surrendered for registration of transfer or for exchange shall (if so required by the Issuer or the Trustee) be duly endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Issuer and the Security Registrar duly executed, by the Holder thereof or such Holder’s attorney duly authorized in writing.

No service charge shall be made for any registration of transfer or exchange of Securities, but the Issuer may require payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Securities, other than exchanges pursuant to Section 304, Section 906 or Section 1107 not involving any transfer. Each Holder that is a transferor of a Security shall provide or cause to be provided to the Trustee all information necessary to allow the Trustee to comply with any applicable tax reporting obligations, including without limitation any cost basis reporting obligations under Internal Revenue Code Section 6045. The Trustee may conclusively rely on information provided to it and shall have no responsibility to verify or ensure the accuracy of such information.

If the Securities of any series (or of any series and specified tenor) are to be redeemed in part, the Issuer shall not be required (A) to issue, register the transfer of or exchange any Securities of such series (or of such series and specified tenor, as the case may be) during a period beginning at the opening of business 15 days before the day of the sending of a notice of redemption of any such Securities selected for redemption under Section 1103 and ending at the close of business on the day of such sending, or (B) to register the transfer of or exchange any Security so selected for redemption in whole or in part, except the unredeemed portion of any Security being redeemed in part.

The provisions of clauses (1), (2) and (3) of this paragraph shall apply only to Global Securities:

Neither the Trustee nor any Agent shall have any responsibility for any actions taken or not taken by the Depositary. The Issuer has entered into a letter of representations with the Depositary in the form provided by the Depositary and the Trustee and each Agent are hereby authorized to act in accordance with such letter and Applicable Procedures. None of the Trustee, the Security Registrar or any Paying Agent shall have any responsibility or obligation to any beneficial owner of an interest in a Global Security, any agent member or other member of, or a participant in,

18

Depositary or other Person with respect to the accuracy of the records of Depositary or any nominee or participant or member thereof, with respect to any ownership interest in the Securities or with respect to the delivery to any agent member or other participant, member, beneficial owner or other Person (other than Depositary) of any notice or the payment of any amount or delivery of any Securities (or other security or property) under or with respect to such Securities. All notices and communications to be given to the Holders and all payments to be made to Holders in respect of the Securities shall be given or made only to or upon the order of the registered Holders (which shall be Depositary or its nominee in the case of a Global Security). The rights of beneficial owners in any Global Security shall be exercised only through Depositary, subject to its applicable rules and procedures. The Trustee, Security Registrar and any Paying Agent may conclusively rely and shall be fully protected in relying upon information furnished by Depositary with respect to its agent members and other members, participants and any beneficial owners.

The Issuer initially appoints the Trustee to act as the Registrar and Paying Agent and to act as Depositary Custodian with respect to the Global Securities, unless specified otherwise pursuant to Section 301. The Issuer shall be responsible for making calculations called for under the Securities and this Indenture, including but not limited to determination of interest, additional amounts, redemption price, premium, if any, and any other amounts payable on the Securities. Absent manifest error, the Issuer’s good faith calculations will be final and binding on the Holders. The Issuer will provide a schedule of its calculations to the Trustee when requested by the Trustee, and the Trustee is entitled to rely conclusively on the accuracy of the Issuer’s calculations without independent verification.

Section 306. Mutilated, Destroyed, Lost and Stolen Securities.

If any mutilated Security is surrendered to the Trustee, the Issuer shall execute and the Trustee shall authenticate and deliver in exchange therefore a new Security of the same series and of like tenor and principal amount and bearing a number not contemporaneously outstanding.

If there shall be delivered to the Issuer and the Trustee (1) evidence to their satisfaction of the destruction, loss or theft of any Security and (2) such security or indemnity as may be required by them to save each of them and any agent of either of them harmless and such other reasonable requirements as may be imposed by the Issuer as permitted by Section 8-405 of the Uniform Commercial Code have been satisfied, then, in the absence of notice to the Issuer or the Trustee that such Security has been acquired by a “protected purchaser” within the meaning of Section 8-405 of the Uniform Commercial Code, the Issuer shall execute and the Trustee shall authenticate and deliver, in lieu of any such destroyed, lost or stolen Security, a new Security of the same series and of like tenor and principal amount and bearing a number not contemporaneously outstanding.

In case any such mutilated, destroyed, lost or stolen Security has become or is about to become due and payable, the Issuer or the Guarantors in its or their discretion may, instead of issuing a new Security, pay such Security.

Upon the issuance of any new Security under this Section 306, the Issuer may require the payment of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other expenses (including the fees and expenses of counsel to the Issuer and the fees and expenses of the Trustee and its counsel) connected therewith.

Every new Security of any series and any Guarantees thereof issued pursuant to this Section 306 in lieu of any mutilated, destroyed, lost or stolen Security shall constitute an original additional contractual obligation of the Issuer and any Guarantors, respectively, whether or not the mutilated, destroyed, lost or stolen Security shall be at any time enforceable by anyone, and shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Securities of such series and any Guarantees thereof duly issued hereunder.

The provisions of this Section 306 are exclusive and shall preclude (to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities.

19

Section 307. Payment of Interest; Interest Rights Preserved.

Except as otherwise provided as contemplated by Section 301 with respect to any series of Securities, interest on any Security which is payable, and is punctually paid or duly provided for, on any Interest Payment Date shall be paid to the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest (or, if no business is conducted by the Trustee at its Corporate Trust Office on such date, at 5:00 p.m. New York City time on such date).

Any interest on any Security of any series which is payable, but is not punctually paid or duly provided for, on any Interest Payment Date (herein called “Defaulted Interest”) shall forthwith cease to be payable to the Holder on the relevant Regular Record Date by virtue of having been such Holder, and such Defaulted Interest may be paid by the Issuer or the Guarantors, at its election in each case, as provided in clause (1) or (2) below:

Subject to the foregoing provisions of this Section 307, each Security delivered under this Indenture upon registration of transfer of or in exchange for or in lieu of any other Security shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Security.

In the case of any Security which is converted after any Regular Record Date and on or prior to the next succeeding Interest Payment Date (other than any Security whose Maturity is prior to such Interest Payment Date), interest whose Stated Maturity is on such Interest Payment Date shall be payable on such Interest Payment Date notwithstanding such conversion, and such interest (whether or not punctually paid or made available for payment) shall be paid to the Person in whose name that Security (or one or more Predecessor Securities) is registered at the close of business on such Regular Record Date. Except as otherwise expressly provided in the immediately preceding sentence, in the case of any Security which is converted, interest whose Stated Maturity is after the date of conversion of such Security shall not be payable. Notwithstanding the foregoing, the terms of any Security that may be converted may provide that the provisions of this paragraph do not apply, or apply with such additions, changes or omissions as may be provided thereby, to such Security.

20

Section 308. Persons Deemed Owners.

Prior to due presentment of a Security for registration of transfer, the Issuer, the Guarantors, the Trustee and any agent of the Issuer, the Guarantors or the Trustee may treat the Person in whose name such Security is registered as the owner of such Security for the purpose of receiving payment of principal of and premium, if any, and, subject to Section 307, any interest on such Security and for all other purposes whatsoever, whether or not such Security be overdue, and none of the Issuer, the Guarantors, the Trustee nor any agent of the Issuer, the Guarantors or the Trustee shall be affected by notice to the contrary.

Section 309. Cancellation.

All Securities surrendered for payment, redemption, registration of transfer or exchange or conversion or for credit against any sinking fund payment shall, if surrendered to any Person other than the Trustee, be delivered to the Trustee and shall be promptly cancelled by it. The Issuer or the Guarantors may at any time deliver to the Trustee for cancellation any Securities previously authenticated and delivered hereunder which the Issuer may have acquired in any manner whatsoever, and may deliver to the Trustee (or to any other Person for delivery to the Trustee) for cancellation any Securities previously authenticated hereunder which the Issuer has not issued and sold, and all Securities so delivered shall be promptly cancelled by the Trustee. No Securities shall be authenticated in lieu of or in exchange for any Securities cancelled as provided in this Section 309, except as expressly permitted by this Indenture. All cancelled Securities held by the Trustee shall be disposed of in accordance with its customary procedures. The Trustee shall provide the Issuer a list of all Securities that have been cancelled from time to time as requested by the Issuer.

Section 310. Computation of Interest.

Except as otherwise specified as contemplated by Section 301 for Securities of any series, interest on the Securities of each series shall be computed on the basis of a 360-day year of twelve 30-day months.

Section 311. CUSIP Numbers.

The Issuer in issuing any series of the Securities may use “CUSIP” or “ISIN” numbers and/or other similar numbers, if then generally in use, and thereafter with respect to such series, the Trustee may use such numbers in any notice with respect to such series; provided that any such notice may state that no representation is made as to the correctness of such numbers either as printed on the Securities of such series or as contained in any notice and that reliance may be placed only on the other identification numbers printed on the Securities of such series, and any such notice shall not be affected by any defect in or omission of such numbers. The Issuer shall promptly notify the Trustee in writing of any change in the CUSIP or ISIN number(s).

Section 312. Original Issue Discount.

If any of the Securities is an Original Issue Discount Security and original issue discount is reportable to the Holders, the Issuer shall file with the Trustee promptly at the end of each calendar year (1) a written notice specifying the amount of original issue discount (including daily rates and accrual periods) accrued on such Outstanding Original Issue Discount Securities as of the end of such year and (2) such other specific information relating to such original issue discount as may then be relevant under the Internal Revenue Code.

ARTICLE IV

SATISFACTION AND DISCHARGE

Section 401. Satisfaction and Discharge of Indenture.

This Indenture shall, upon Issuer Request, cease to be of further effect with respect to any series of Securities specified in such Issuer Request (except as to any surviving rights of registration of transfer or exchange of Securities of such series herein expressly provided for), and the Trustee, at the expense of the Issuer, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture as to such series, when:

21

and the Issuer or the Guarantors, in the case of (i), (ii) or (iii) above, has deposited or caused to be deposited with the Trustee as trust funds in trust for the purpose money in an amount sufficient to pay and discharge the entire indebtedness on such Securities not theretofore delivered to the Trustee for cancellation, for principal and premium, if any, and interest to the date of such deposit (in the case of Securities which have become due and payable) or to the Stated Maturity or Redemption Date, as the case may be;

Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Issuer to the Trustee under Section 607 and, if money shall have been deposited with the Trustee pursuant to subclause (B) of clause (1) of this Section 401, the obligations of the Trustee under Section 402 and the last paragraph of Section 1003 shall survive.

Section 402. Application of Trust Money.

Subject to the provisions of the last paragraph of Section 1003, all money deposited with the Trustee pursuant to Section 401 shall be held in trust and applied by it, in accordance with the provisions of the applicable series of Securities and this Indenture, to the payment, either directly or through any Paying Agent (including the Issuer acting as Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal and premium, if any, and interest for whose payment such money has been deposited with the Trustee. All money deposited with the Trustee pursuant to Section 401 (and held by it or any Paying Agent) for the payment of Securities subsequently converted into other property shall, subject to applicable abandoned property law, be returned to the Issuer upon Issuer Request or to the Guarantors upon Guarantor Request, to the extent originally deposited by such party. The Issuer or the Guarantors, as the case may be, may direct by an Issuer Order or Guarantor Order, as applicable, the investment of any money deposited with the Trustee pursuant to Section 401, without distinction between principal and income, in (1) United States Treasury securities with a maturity of one year or less, but in no event with a maturity later than the Maturity of the Securities, or (2) a money market fund that invests solely in short-term United States Treasury securities (including money market funds for which the Trustee or an affiliate of the Trustee serves as investment advisor, administrator, shareholder, servicing agent and/or custodian or sub-custodian, notwithstanding that (a) the Trustee charges and collects fees and expenses from such funds for services rendered and (b) the Trustee charges and collects fees and expenses for services rendered pursuant to this Indenture at any time) and from time to time the Issuer or the Guarantors, as the case may be, may direct the reinvestment of all or a portion of such money in other securities or funds meeting the criteria specified in clause (1) or (2) of this Section 402.

22

ARTICLE V

REMEDIES

Section 501. Events of Default.

Except as may be otherwise provided pursuant to Section 301 for Securities of any series, an “Event of Default” means, whenever used herein or in a Security issued hereunder with respect to Securities of any series, any one of the following events (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body):

23

The term “Bankruptcy Law” means Title 11, United States Code, or any similar Federal or state or foreign law for the relief of debtors. The term “Custodian” means any custodian, receiver, trustee, assignee, liquidator or other similar official under any Bankruptcy Law.

A Default with respect to Securities of any series under clause (4) of this Section 501 shall not be an Event of Default until the Trustee (by written notice to the Issuer and the Guarantors) or the Holders of at least 25% in aggregate principal amount of the outstanding Securities of such series (by written notice to the Issuer, the Guarantors and the Trustee) gives notice of the Default and the Issuer or any Guarantor does not cure such Default within the time specified in clause (4) after receipt of such notice. Such notice must specify the Default, demand that it be remedied and state that such notice is a “Notice of Default.”

Section 502. Acceleration of Maturity; Rescission and Annulment.

If an Event of Default with respect to Securities of any series at the time Outstanding (other than an Event of Default specified in Section 501(5) or (6)) occurs and is continuing, then in every such case the Trustee or the Holders of not less than 25% in aggregate principal amount of the Outstanding Securities of such series may declare the principal amount of all the Securities of such series (or, if any Securities of such series are Original Issue Discount Securities, such portion of the principal amount of such Securities as may be specified by the terms thereof), together with any accrued and unpaid interest thereon, to be due and payable immediately, by a notice in writing to the Issuer and the Guarantors (and to the Trustee if given by Holders), and upon any such declaration, such principal amount (or specified amount), together with any accrued and unpaid interest thereon, shall become immediately due and payable. If an Event of Default specified in Section 501(5) or (6) with respect to the Securities of any series at the time Outstanding occurs, the principal amount of all the Securities of such series (or, in the case of any Security of such series which specifies an amount to be due and payable thereon upon acceleration of the Maturity thereof, such amount as may be specified by the terms thereof), together with any accrued and unpaid interest thereon, shall automatically, and without any declaration or other action on the part of the Trustee or any Holder, become immediately due and payable. Upon payment of such amount, all obligations of the Issuer and any Guarantors in respect of the payment of principal and interest of the Securities of such series shall terminate.

Except as may otherwise be provided pursuant to Section 301 for all or any specific Securities of any series, at any time after such a declaration of acceleration with respect to the Securities of any series has been made and before a judgment or decree for payment of the money due has been obtained by the Trustee as hereinafter in this Article V provided, the Holders of a majority in aggregate principal amount of the Outstanding Securities of such series, by written notice to the Issuer, the Guarantors and the Trustee, may rescind and annul such declaration and its consequences if:

24

No such rescission shall affect any subsequent Event of Default or impair any right consequent thereon.

Section 503. Collection of Indebtedness and Suits for Enforcement by Trustee.

The Issuer covenants that if (1) default is made in the payment of any interest on any Security when such interest becomes due and payable and such default continues for a period of 60 days, or (2) default is made in the payment of the principal of or premium, if any, on any Security at the Maturity thereof, it will, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of such Securities, the whole amount then due and payable on such Securities for principal and premium, if any, and interest and, to the extent that payment of such interest shall be legally enforceable, interest on any overdue principal and premium and on any overdue interest, at the rate or rates prescribed therefor in such Securities, and, in addition thereto, such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

If an Event of Default with respect to Securities of any series occurs and is continuing, the Trustee may in its discretion proceed to protect and enforce its rights and the rights of the Holders of Securities of such series by such appropriate judicial proceedings as the Trustee shall deem necessary to protect and enforce any such rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein, or to enforce any other proper remedy.

Section 504. Trustee May File Proofs of Claim.

In case of any judicial proceeding relative to the Issuer or the Guarantors (or any other obligor upon the Securities), its property or its creditors, the Trustee shall be entitled and empowered, by intervention in such proceeding or otherwise, to take any and all actions authorized under the Trust Indenture Act in order to have claims of the Holders and the Trustee allowed in any such proceeding. In particular, the Trustee shall be authorized to collect and receive any moneys or other property payable or deliverable on any such claims and to distribute the same; and any custodian, receiver, assignee, trustee, liquidator, sequestrator or other similar official in any such judicial proceeding is hereby authorized by each Holder to make such payments to the Trustee and, in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due it and any predecessor Trustee under Section 607. To the extent that the payment of any such reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 607 hereof out of the estate in any such proceeding, shall be unpaid for any reason, payment of the same shall be secured by a lien on, and shall be paid out of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in such proceeding whether in liquidation or under any plan of reorganization or arrangement or otherwise.

No provision of this Indenture shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Securities or the rights of any Holder thereof or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding; provided, however, that the Trustee may, on behalf of the Holders, vote for the election of a trustee in bankruptcy or similar official and be a member of a creditors’ or other similar committee.

Section 505. Trustee May Enforce Claims Without Possession of Securities.

All rights of action and claims under this Indenture or the Securities may be prosecuted and enforced by the Trustee without the possession of any of the Securities or the production thereof in any proceeding relating thereto, and any such proceeding instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any recovery of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, any predecessor Trustee under Section 607, its agents and counsel, be for the ratable benefit of the Holders of the Securities in respect of which such judgment has been recovered.

25

Section 506. Application of Money Collected.

Any money or property collected by the Trustee pursuant to this Article V, and after an Event of Default any money or other property distributable in respect of the Issuer’s or Guarantors’ obligations under this Indenture, shall be applied in the following order, at the date or dates fixed by the Trustee and, in case of the distribution of such money on account of principal or premium, if any, or interest, upon presentation of the Securities and the notation thereon of the payment if only partially paid and upon surrender thereof if fully paid:

FIRST: To the payment of all amounts due the Trustee under Section 607;

SECOND: To the payment of the amounts then due and unpaid for principal of and premium, if any, and interest on the Securities in respect of which or for the benefit of which such money has been collected, ratably, without preference or priority of any kind, according to the amounts due and payable on such Securities for principal and premium, if any, and interest, respectively; and

THIRD: To the payment of the remainder, if any, to the Issuer or the Guarantors.

Section 507. Limitation on Suits.

Except as provided in Section 508, no Holder of any Security of any series shall have any right to institute any proceeding, judicial or otherwise, with respect to this Indenture, or for the appointment of a receiver, assignee, trustee, liquidator or sequestrator (or similar official) or for any other remedy hereunder, unless:

it being understood and intended that no one or more of such Holders shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice the rights of any other of such Holders, or to obtain or to seek to obtain priority or preference over any other of such Holders or to enforce any right under this Indenture, except in the manner herein provided and for the equal and ratable benefit of all of such Holders.

Section 508. Unconditional Right of Holders to Receive Principal, Premium and Interest and to Convert Securities.

Notwithstanding any other provision in this Indenture, the Holder of any Security shall have the right, which is absolute and unconditional, to receive payment of the principal of and premium, if any, and, subject to Section 307, interest on such Security on the respective Stated Maturities expressed in such Security (or, in the case of redemption or repayment, on the Redemption Date or date for repayment, as the case may be, and, if the terms of such Security so provide, to convert such Security in accordance with its terms) and to institute suit for the enforcement of any such payment and, if applicable, any such right to convert, and such rights shall not be impaired without the consent of such Holder.

26

Section 509. Rights and Remedies Cumulative.

Except as otherwise provided with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities in the last paragraph of Section 306, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy.

Section 510. Delay or Omission Not Waiver.

No delay or omission of the Trustee or of any Holder of any Securities to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or an acquiescence therein. Every right and remedy given by this Article V or by law to the Trustee or to the Holders may be exercised from time to time, and as often as may be deemed expedient, by the Trustee or by the Holders, as the case may be.

Section 511. Control by Holders.

The Holders of not less than a majority in aggregate principal amount of the Outstanding Securities of any series shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred on the Trustee, with respect to the Securities of such series; provided that

Section 512. Waiver of Past Defaults.

The Holders of not less than a majority in aggregate principal amount (including waivers obtained in connection with a purchase of, or tender offer or exchange offer for, Securities) of the Outstanding Securities of any series to be affected under this Indenture may on behalf of the Holders of all the Securities of such series waive any past or existing default and its consequences hereunder with respect to such series and its consequences, except a default

Upon any such waiver, such default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured, for every purpose of this Indenture, but no such waiver shall extend to any subsequent or other default or impair any right consequent thereon. A waiver of any past default and its consequences given by or on behalf of any Holder of Securities in connection with a purchase of, or tender or exchange offer for, such Holder’s Securities will not be rendered invalid by such purchase, tender or exchange.

Section 513. Undertaking for Costs.

In any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the Trustee for any action taken, suffered or omitted by it as Trustee, a court may require any party litigant in such suit to file an undertaking to pay the costs of such suit, and may assess reasonable costs against any such party litigant, in the manner

27

and to the extent provided in the Trust Indenture Act; provided that neither this Section 513 nor the Trust Indenture Act shall be deemed to authorize any court to require such an undertaking or to make such an assessment in any suit instituted by the Issuer, the Guarantors or the Trustee, a suit by a Holder under Section 508, or a suit by Holders of more than 10% in aggregate principal amount of the Outstanding Securities.

Section 514. Waiver of Usury, Stay or Extension Laws.

Each of the Issuer and the Guarantors covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any usury, stay or extension law wherever enacted, now or at any time hereafter in force, which may affect the covenants or the performance of this Indenture; and each of the Issuer and the Guarantors (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law and covenants that it will not hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted.

Section 515. Restoration of Rights and Remedies.

If the Trustee or any Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such case, subject to any determination in such proceeding, the Issuer, the Guarantors, the Trustee and the Holders shall be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders shall continue as though no such proceeding had been instituted.

ARTICLE VI

THE TRUSTEE

Section 601. Certain Duties and Responsibilities of Trustee.

28

Section 602. Notice of Defaults.

If a Default or an Event of Default occurs with respect to Securities of any series and is continuing and if it is actually known to a Responsible Officer of the Trustee, the Trustee shall mail to each Holder of Securities of such series notice of the Default within 90 days after it is known to a Responsible Officer or written notice of it is received by a Responsible Officer from the Issuer or by the Holders of at least 25% of the aggregate principal amount of the Securities of such series. Except in the case of a Default in payment of principal of or interest on any Security, the Trustee may withhold the notice if and so long as a committee of Responsible Officers in good faith determines that withholding the notice is in the interests of Holders of Securities of such series.

Section 603. Certain Rights of Trustee.

Subject to the provisions of Section 601:

29

30

Section 604. Not Responsible for Recitals or Issuance of Securities.

The recitals contained herein and in the Securities, except the Trustee’s certificates of authentication, shall be taken as the statements of the Issuer and the Guarantors, as the case may be, and the Trustee assumes no responsibility for their correctness. The Trustee makes no representations as to and shall not be responsible for the validity or sufficiency of this Indenture or of the Securities or Guarantees. The Trustee shall not be accountable for the use or application by the Issuer of the Securities or the proceeds thereof or any money paid to the Issuer or upon the Issuer’s direction under any provision of this Indenture.

Section 605. May Hold Securities.

The Trustee, any Paying Agent, any Security Registrar or any other agent of the Issuer or the Guarantors, in its individual or any other capacity, may become the owner or pledgee of Securities and, subject to Sections 608 and 613, may otherwise deal with the Issuer with the same rights it would have if it were not Trustee, Paying Agent, Security Registrar or such other agent.

Section 606. Money Held in Trust.

Money held by the Trustee in trust hereunder shall, until used or applied as herein provided, be held in trust for the purposes for which they were received, but need not be segregated from other funds except to the extent required by law. The Trustee shall be under no liability for interest on any money received by it hereunder except as otherwise agreed in writing with the Issuer or the Guarantors.

Section 607. Compensation and Reimbursement.

The Issuer and the Guarantors, jointly and severally, agree:

When the Trustee incurs expenses or renders services in connection with an Event of Default specified in Section 501(5) or (6), the expenses (including the reasonable charges and expenses of its counsel) and the compensation for the services are intended to constitute expenses of administration under any applicable Federal or state bankruptcy, insolvency or other similar law.

31

The provisions of this Section 607 shall survive the termination of this Indenture and the resignation or removal of the Trustee. All indemnifications and releases from liability granted hereunder to the Trustee shall extend to its officers, directors, employees, agents, attorneys, custodians, successors and assigns. “Trustee” for the purposes of this Section 607 shall include any predecessor Trustee and the Trustee in each of its capacities hereunder and each agent, custodian and other person employed to act hereunder; provided, however, that the negligence, bad faith or willful misconduct of any Trustee hereunder shall not affect the rights of any other Trustee hereunder. “Bad faith” for purposes of this Section 607 shall not include any act or omission of the Trustee taken pursuant to any Issuer Request, Issuer Order, Officer’s Certificate, Opinion of Counsel, or any other notice, request or direction delivered by any Officer of the Issuer or any Guarantor to the Trustee pursuant to this Indenture.

Section 608. Conflicting Interests.

If the Trustee has or shall acquire a conflicting interest within the meaning of the Trust Indenture Act, the Trustee shall either eliminate such interest or resign, to the extent and in the manner provided by, and subject to the provisions of, the Trust Indenture Act and this Indenture.

To the extent permitted by the Trust Indenture Act, the Trustee shall not be deemed to have a conflicting interest by virtue of being a trustee under this Indenture with respect to Securities of more than one series or any indenture or indentures under which other securities or certificates of interest or participation in other securities of the Issuer or any of the Guarantors are outstanding.

Section 609. Corporate Trustee Required; Eligibility.

There shall at all times be one (and only one) Trustee hereunder with respect to the Securities of each series, which may be Trustee hereunder for Securities of one or more series. Each Trustee shall be a Person that is eligible pursuant to the Trust Indenture Act to act as such, has a combined capital and surplus of at least $50,000,000 and has its Corporate Trust Office in the continental United States. If any such Person publishes reports of condition at least annually, pursuant to law or to the requirements of its supervising or examining authority, then for the purposes of this Section 609 and to the extent permitted by the Trust Indenture Act, the combined capital and surplus of such Person shall be deemed to be its combined capital and surplus as set forth in its most recent annual report of condition so published. If at any time the Trustee with respect to the Securities of any series shall cease to be eligible in accordance with the provisions of this Section 609, it shall resign immediately in the manner and with the effect hereinafter specified in this Article VI.

Section 610. Resignation and Removal; Appointment of Successor.

No resignation or removal of the Trustee and no appointment of a successor Trustee pursuant to this Article VI shall become effective until the acceptance of appointment by the successor Trustee in accordance with the applicable requirements of Section 611.

The Trustee may resign at any time with respect to the Securities of one or more series by giving written notice thereof to the Issuer and the Guarantors. If the instrument of acceptance by a successor Trustee required by Section 611 shall not have been delivered to the Trustee within 30 days after the giving of such notice of resignation, the resigning Trustee may petition, at the expense of the Issuer or the Guarantors, any court of competent jurisdiction for the appointment of a successor Trustee with respect to the Securities of such series.

The Trustee may be removed at any time with respect to the Securities of any series by Act of the Holders of a majority in aggregate principal amount of the Outstanding Securities of such series, upon written notice delivered to the Trustee and to the Issuer and the Guarantors. If the instrument of acceptance by a successor Trustee required by Section 611 shall not have been delivered to the Trustee within 30 days after the giving of such notice of removal, the Trustee being removed may petition, at the expense of the Issuer or the Guarantors, any court of competent jurisdiction for the appointment of a successor Trustee with respect to the Securities of such series.

32

If at any time:

then, in any such case, (A) the Issuer or the Guarantors may remove the Trustee with respect to all Securities or (B) subject to Section 513, Holders of 10% in aggregate principal amount of Securities of any series who have been bona fide Holders of such Securities for at least six months may, on behalf of themselves and all others similarly situated, petition any court of competent jurisdiction for the removal of the Trustee with respect to all Securities and the appointment of a successor Trustee or Trustees.

If the Trustee shall resign, be removed or become incapable of acting, or if a vacancy shall occur in the office of Trustee for any cause, with respect to the Securities of one or more series, the Issuer or the Guarantors shall promptly appoint a successor Trustee or Trustees with respect to the Securities of that or those series (it being understood that any such successor Trustee may be appointed with respect to the Securities of one or more or all of such series and that at any time there shall be only one Trustee with respect to the Securities of any particular series) and shall comply with the applicable requirements of Section 611. If, within one year after such resignation, removal or incapability, or the occurrence of such vacancy, a successor Trustee with respect to the Securities of any series shall be appointed by Act of the Holders of a majority in aggregate principal amount of the Outstanding Securities of such series delivered to the Issuer and the retiring Trustee, the successor Trustee so appointed shall, forthwith upon its acceptance of such appointment in accordance with the applicable requirements of Section 611, become the successor Trustee with respect to the Securities of such series and to that extent supersede the successor Trustee appointed by the Issuer or the Guarantors. If no successor Trustee with respect to the Securities of any series shall have been so appointed by the Issuer, the Guarantors or the Holders and accepted appointment in the manner required by Section 611, Holders of 10% in aggregate principal amount of Securities of any series who have been bona fide Holders of Securities of such series for at least six months may, on behalf of themselves and all others similarly situated, petition any court of competent jurisdiction for the appointment of a successor Trustee with respect to the Securities of such series.

The Issuer or the Guarantors shall give notice of each resignation and each removal of the Trustee with respect to the Securities of any series and each appointment of a successor Trustee with respect to the Securities of any series to all Holders of Securities of such series in the manner provided in Section 106. Each notice shall include the name of the successor Trustee with respect to the Securities of such series and the address of its Corporate Trust Office.

Section 611. Acceptance of Appointment by Successor.

In case of the appointment hereunder of a successor Trustee with respect to all Securities, every such successor Trustee so appointed shall execute, acknowledge and deliver to the Issuer, the Guarantors and the retiring Trustee a written instrument accepting such appointment, and thereupon the resignation or removal of the retiring Trustee shall become effective and such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee, but, on the request of the Issuer, the Guarantors or the successor Trustee, such retiring Trustee shall, upon payment of its charges, execute and deliver a written instrument transferring to such successor Trustee all the rights, powers and trusts of the retiring Trustee and shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder.

33

In case of the appointment hereunder of a successor Trustee with respect to the Securities of one or more (but not all) series, the Issuer, the Guarantors, the retiring Trustee and each successor Trustee with respect to the Securities of one or more series shall execute and deliver an indenture supplemental hereto wherein each successor Trustee shall accept such appointment and which (1) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, each successor Trustee all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series and the Guarantees thereof to which the appointment of such successor Trustee relates, (2) if the retiring Trustee is not retiring with respect to all Securities, shall contain such provisions as shall be deemed necessary or desirable to confirm that all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series and the Guarantees thereof as to which the retiring Trustee is not retiring shall continue to be vested in the retiring Trustee, and (3) shall add to or change any of the provisions of this Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Trustee, it being understood that nothing herein or in such supplemental indenture shall constitute such Trustees co-trustees of the same trust and that each such Trustee shall be trustee of a trust or trusts hereunder separate and apart from any trust or trusts hereunder administered by any other such Trustee; and upon the execution and delivery of such supplemental indenture the resignation or removal of the retiring Trustee shall become effective to the extent provided therein and each such successor Trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, trusts and duties of the retiring Trustee with respect to the Securities of that or those series to which the appointment of such successor Trustee relates; but, on request of the Issuer, the Guarantors or any successor Trustee, such retiring Trustee shall duly assign, transfer and deliver to such successor Trustee all property and money held by such retiring Trustee hereunder with respect to the Securities of that or those series to which the appointment of such successor Trustee relates.

Upon request of any such successor Trustee, the Issuer and the Guarantors shall execute any and all instruments for more fully and certainly vesting in and confirming to such successor Trustee all such rights, powers and trusts referred to in the first or second preceding paragraph, as the case may be, provided all sums owing to the Trustee hereunder have been paid and subject to the lien provided for in Section 607.

No successor Trustee shall accept its appointment unless at the time of such acceptance such successor Trustee shall be qualified and eligible under this Article VI.

Section 612. Merger, Conversion, Consolidation or Succession to Business.

Any corporation into which the Trustee may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger, conversion or consolidation to which the Trustee shall be a party, or any corporation succeeding to all or substantially all the corporate trust business of the Trustee, shall be the successor of the Trustee hereunder; provided that such corporation shall be otherwise qualified and eligible under this Article VI, without the execution or filing of any paper or any further act on the part of any of the parties hereto. In case any Securities shall have been authenticated, but not delivered, by the Trustee then in office, any successor by merger, conversion, consolidation or sale to such authenticating Trustee may adopt such authentication and deliver the Securities so authenticated with the same effect as if such successor Trustee had itself authenticated such Securities; and in case at that time any Securities shall not have been authenticated, any successor to the Trustee may authenticate such Securities either in the name of any predecessor hereunder or in the name of the successor to the Trustee; and in all such cases such certificates shall have the full force which it is anywhere in the Securities or in this Indenture provided that the certificate of the Trustee shall have.

Section 613. Preferential Collection of Claims Against Issuer.

If and when the Trustee shall be or become a creditor of the Issuer or the Guarantors (or any other obligor upon the Securities), the Trustee shall be subject to the provisions of the Trust Indenture Act regarding the collection of claims against the Issuer or the Guarantors (or any such other obligor), excluding any creditor relationship listed in Trust Indenture Act Section 311(b).

34

ARTICLE VII

HOLDERS’ LISTS AND REPORTS BY THE TRUSTEE, THE ISSUER AND THE GUARANTORS

Section 701. Issuer to Furnish Trustee Names and Addresses of Holders.

If the Trustee is not the Security Registrar, the Issuer shall cause the Security Registrar to furnish to the Trustee, in writing at least five Business Days before each Interest Payment Date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of Holders of Securities of each series.

Section 702. Preservation of Information; Communications to Holders.

The Trustee shall preserve, in as current a form as is reasonably practicable, the names and addresses of Holders contained in the most recent list furnished to the Trustee as provided in Section 701 and the names and addresses of Holders received by the Trustee in its capacity as Security Registrar. The Trustee may destroy any list furnished to it as provided in Section 701 upon receipt of a new list so furnished.

The rights of Holders to communicate with other Holders with respect to their rights under this Indenture or under the Securities, and the corresponding rights and privileges of the Trustee, shall be as provided by the Trust Indenture Act.

Every Holder of Securities, by receiving and holding the same, agrees with the Issuer, the Guarantors and the Trustee that none of the Issuer, the Guarantors, the Trustee or any agent of any of them shall be held accountable by reason of any disclosure of information as to names and addresses of Holders made pursuant to the Trust Indenture Act.

Section 703. Reports by Trustee.

The Trustee shall transmit to Holders such reports concerning the Trustee and its actions under this Indenture as may be required pursuant to the Trust Indenture Act at the times and in the manner provided pursuant thereto. Each report pursuant to Trust Indenture Act Section 313(a) shall be delivered within 60 days after each May 15 beginning with the May 15 following the issuance of Securities. The Trustee shall promptly deliver to the Issuer and the Guarantors a copy of any report it delivers to Holders pursuant to this Section 703.

A copy of each such report shall, at the time of such transmission to Holders, be filed by the Trustee with each stock exchange and automated quotation system, if any, upon which any Securities are listed, with the Commission, the Issuer and the Guarantors. The Issuer and the Guarantors will promptly notify the Trustee when any Securities are listed on any stock exchange or automated quotation system or delisted therefrom.

Section 704. Reports by the Issuer and the Guarantors.

The Issuer and the Guarantors shall comply with all the applicable provisions of the Trust Indenture Act. Delivery of such reports, information and documents to the Trustee is for informational purposes only and shall not constitute a representation or warranty as to the accuracy or completeness of the reports, information and documents. The Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Issuer’s or the Guarantors’ compliance with any of their covenants hereunder (as to which the Trustee is entitled to conclusively rely exclusively on Officer’s Certificates).

ARTICLE VIII

CONSOLIDATION, MERGER AND SALE OF ASSETS

Section 801. Issuer May Merge or Transfer Assets on Certain Terms.

The Issuer may consolidate with or merge with or into, or sell, transfer, lease or convey all or substantially all of its properties and assets to, in one transaction or a series of related transactions, any other Person, provided that:

35

Section 802. Successor Person Substituted.

Upon any consolidation of the Issuer with, or merger of the Issuer into, any other Person or any sale, transfer, lease or conveyance of all or substantially all of the properties and assets of the Issuer, in each case in accordance with Section 801, the successor Person shall succeed to, and be substituted for, and may exercise every right and power of, the Issuer under this Indenture, with the same effect as if such successor Person had been an original party to this Indenture, and the Issuer shall be released from all of its liabilities and obligations under this Indenture and the Securities.

ARTICLE IX

SUPPLEMENTAL INDENTURES

Section 901. Supplemental Indentures Without Consent of Holders.

Without the consent of any Holders, the Issuer, the Guarantors and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, for any of the following purposes:

36

Section 902. Supplemental Indentures With Consent of Holders.

With the consent of the Holders of not less than a majority in aggregate principal amount of the Outstanding Securities of each series affected by such supplemental indenture (including consents obtained in connection with a tender offer or exchange for Securities), by Act of said Holders delivered to the Issuer, the Guarantors and the Trustee, the Issuer, the Guarantors and the Trustee may enter into an indenture or indentures supplemental hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or of modifying in

37

any manner the rights of the Holders of Securities of such series under this Indenture; provided, however, no such supplemental indenture shall, without the consent of the Holder of each Outstanding Security of such series affected thereby:

A supplemental indenture which changes or eliminates any covenant or other provision of this Indenture which has expressly been included solely for the benefit of one or more particular series of Securities, or which modifies the rights of the Holders of Securities of such series with respect to such covenant or other provision, shall be deemed not to affect the rights under this Indenture of the Holders of Securities of any other series.

It shall not be necessary for any Act of Holders under this Section 902 to approve the particular form of any proposed supplemental indenture, but it shall be sufficient if such Act shall approve the substance thereof.

After a supplemental indenture under this Section 902 becomes effective, the Issuer and the Guarantors shall send to the Trustee a written notice briefly describing such supplemental indenture or a copy of such supplemental indenture and the Trustee shall send such notice or supplemental indenture to Holders affected thereby. Any failure of the Issuer and the Guarantors to mail such notice, or any defect therein, or any failure of the Issuer and the Guarantors to send such supplemental indenture, shall not in any way impair or affect the validity of any such supplemental indenture.

38

Section 903. Execution of Supplemental Indentures.

In executing, or accepting the additional trusts created by, any supplemental indenture permitted by this Article IX or the modifications thereby of the trusts created by this Indenture, the Trustee shall be entitled to receive, and, subject to Section 601, shall be fully protected in conclusively relying upon, an Issuer Request, an Officer’s Certificate and an Opinion of Counsel stating that the execution of such supplemental indenture is authorized or permitted by this Indenture and that all conditions precedent in this Indenture to the execution of such supplemental indenture, if any, have been complied with. The Trustee may, but shall not be obligated to, enter into any such supplemental indenture which affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise.

Section 904. Effect of Supplemental Indentures.

Upon the execution of any supplemental indenture under this Article IX, this Indenture shall be modified in accordance therewith, and such supplemental indenture shall form a part of this Indenture for all purposes; and every Holder of Securities theretofore or thereafter authenticated and delivered hereunder shall be bound thereby.

Section 905. Conformity with Trust Indenture Act.

Every supplemental indenture executed pursuant to this Article IX shall conform to the requirements of the Trust Indenture Act.

Section 906. Reference in Securities to Supplemental Indentures.

Securities of any series authenticated and delivered after the execution of any supplemental indenture pursuant to this Article IX may, and shall if required by the Trustee, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture. If the Issuer and the Guarantors shall so determine, new Securities of any series so modified as to conform, in the opinion of the Issuer and the Guarantors, to any such supplemental indenture may be prepared and executed by the Issuer and authenticated and delivered by the Trustee in exchange for Outstanding Securities of such series.

ARTICLE X

COVENANTS

Section 1001. Payment of Principal, Premium, if any, and Interest.

The Issuer covenants and agrees for the benefit of each series of Securities that it will duly and punctually pay the principal of and premium, if any, and interest on the Securities of such series in accordance with the terms of the Securities and this Indenture. Principal and interest shall be considered paid on the date due if, on or before 11:00 a.m. (New York City time) on such date, the Trustee or the Paying Agent (or, if the Issuer or any Subsidiary is the Paying Agent, the segregated account or separate trust fund maintained by the Issuer or such Subsidiary pursuant to Section 1003) holds in accordance with this Indenture money sufficient to pay all principal and interest then due.

The Issuer shall pay interest on overdue principal at the rate specified therefor in the Securities, and it shall pay interest on overdue installments of interest at the same rate to the extent lawful as provided in Section 307.

Notwithstanding anything to the contrary contained in this Indenture, the Issuer, the Guarantors or the Paying Agent may, to the extent it is required to do so by law, deduct or withhold income or other similar taxes imposed by the United States of America or other domestic or foreign taxing authorities from principal or interest payments hereunder.

Section 1002. Maintenance of Office or Agency.

The Issuer will maintain in each Place of Payment for any series of Securities an office or agency where Securities of such series may be presented or surrendered for payment, where Securities of such series may be surrendered for registration of transfer or exchange, where Securities may be surrendered for conversion, and where notices and demands to or upon the Issuer or the Guarantors in respect of the Securities of such series or the Guarantees thereof, as the case may be, and this Indenture may be served. The Issuer will give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Issuer shall fail to maintain any

39

such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee. Each of the Issuer and the Guarantors hereby appoints the Trustee as its agent to receive all such presentations, surrenders, notices and demands.

The Issuer or the Guarantors may also from time to time designate one or more other offices or agencies where the Securities of one or more series may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve the Issuer of its obligation to maintain an office or agency in each Place of Payment for Securities of any series for such purposes. The Issuer or the Guarantors, as the case may be, will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

With respect to any Global Security, and except as otherwise may be specified for such Global Security as contemplated by Section 301, the Corporate Trust Office of the Trustee shall be the Place of Payment where such Global Security may be presented or surrendered for payment or for registration of transfer or exchange, or where successor Securities may be delivered in exchange therefor; provided, however, that any such payment, presentation, surrender or delivery effected pursuant to the Applicable Procedures of the Depositary for such Global Security shall be deemed to have been effected at the Place of Payment for such Global Security in accordance with the provisions of this Indenture.

Section 1003. Money for Securities Payments to Be Held in Trust.

If the Issuer shall at any time act as its own Paying Agent with respect to any series of Securities, it will, on or before each due date for the principal of or premium, if any, or interest on any of the Securities of such series, segregate and hold in trust for the benefit of the Holders of such Securities a sum sufficient to pay the principal and premium, if any, and interest so becoming due until such sums shall be paid to such Holders or otherwise disposed of as herein provided and will promptly notify the Trustee of its action or failure so to act.

Whenever the Issuer shall have one or more Paying Agents for any series of Securities, it will, no later than 11:00 a.m. (New York City time) on each due date for the principal of or premium, if any, or interest on any Securities of such series, deposit with a Paying Agent a sum sufficient to pay such amount, such sum to be held in trust for the Holders of such Securities entitled to the same, and (unless such Paying Agent is the Trustee) the Issuer will promptly notify the Trustee of its action or failure so to act.

The Issuer will cause each Paying Agent for any series of Securities other than the Trustee to execute and deliver to the Trustee an instrument in which such Paying Agent shall agree with the Trustee, subject to the provisions of this Section 1003, that such Paying Agent shall hold in trust for the benefit of Holders or the Trustee all money held by such Paying Agent for the payment of principal of or interest on the Securities and shall notify the Trustee in writing of any default by the Issuer in making any such payment.

The Issuer may at any time, for the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, pay, or by Issuer Order direct any Paying Agent to pay, to the Trustee all sums held in trust by the Issuer or such Paying Agent, such sums to be held by the Trustee upon the same trusts as those upon which such sums were held by the Issuer or such Paying Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be released from all further liability with respect to such money.

Subject to any applicable abandoned property law, any money deposited with the Trustee or any Paying Agent, or then held by the Issuer, in trust for the payment of the principal of or premium, if any, or interest on any Security of any series and remaining unclaimed for two years after such principal, premium or interest has become due and payable shall be paid to the Issuer on Issuer Request, or (if then held by the Issuer) shall be discharged from such trust; and the Holder of such Security shall thereafter, as an unsecured general creditor, look only to the Issuer (and, pursuant to the Guarantees thereof, the Guarantors) for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Issuer as trustee thereof, shall thereupon cease.

40

Section 1004. Statement by Officers as to Default.

The Issuer shall deliver to the Trustee within 120 days after the end of each fiscal year of the Issuer ending after the date hereof an Officer’s Certificate signed by its principal executive officer, principal financial officer or principal accounting officer, stating whether or not, to the knowledge of such Officer, the Issuer or the Guarantors are in default in the performance and observance of any of the terms, provisions and conditions of this Indenture applicable to it (without regard to any period of grace or requirement of notice provided hereunder) and, if the Issuer or the Guarantors, as the case may be, shall be in default, specifying all such defaults and the nature and status thereof of which such Officer may have knowledge.

Section 1005. Waiver of Certain Covenants.

Except as otherwise specified as contemplated by Section 301 for Securities of such series, the Issuer or the Guarantors, as the case may be, may, with respect to the Securities of any series, omit in any particular instance to comply with any term, provision or condition set forth in any covenant provided pursuant to Section 301(19), Section 901(1) or Section 901(8) for the benefit of the Holders of such series or in Article VIII, if before the time for such compliance the Holders of at least a majority in aggregate principal amount (including waivers obtained in connection with a purchase of, or tender offer or exchange offer for, Securities) of the Outstanding Securities of such series shall, by Act of such Holders, either waive such compliance in such instance or generally waive compliance with such term, provision or condition, but no such waiver shall extend to or affect such term, provision or condition except to the extent so expressly waived, and, until such waiver shall become effective, the obligations of the Issuer or the Guarantors, as the case may be, and the duties of the Trustee in respect of any such term, provision or condition shall remain in full force and effect. A waiver of compliance given by or on behalf of any Holder of Securities in connection with a purchase of, or tender or exchange offer for, such Holder’s Securities will not be rendered invalid by such purchase, tender or exchange.

ARTICLE XI

REDEMPTION OF SECURITIES

Section 1101. Applicability of Article.

Securities of any series which are redeemable before their Stated Maturity shall be redeemable in accordance with their terms and (except as otherwise specified as contemplated by Section 301 for such Securities) in accordance with this Article XI.

Section 1102. Election to Redeem; Notice to Trustee.

The election of the Issuer to redeem any Securities shall be evidenced by a Board Resolution or an Officer’s Certificate or in another manner specified as contemplated by Section 301 for such Securities. In case of any redemption at the election of the Issuer of the Securities of any series (including any such redemption affecting only a single Security), the Issuer shall, at least five Business Days prior to the date notice of redemption is required to be sent or caused to be sent pursuant to Section 1104 (unless a shorter notice shall be satisfactory to the Trustee), deliver written notice to the Trustee together with such Board Resolution or an Officer’s Certificate of such Redemption Date, the Redemption Price, of the principal amount of Securities of such series to be redeemed and, if applicable, of the tenor of the Securities to be redeemed. In the case of any redemption of Securities (1) prior to the expiration of any restriction or condition on such redemption provided in the terms of such Securities or elsewhere in this Indenture, or (2) pursuant to an election of the Issuer that is subject to a condition specified in the terms of the Securities of the series to be redeemed, the Issuer shall furnish the Trustee with an Officer’s Certificate evidencing compliance with such restriction or condition. If the Redemption Price is not known at the time such notice is to be given, the actual Redemption Price calculated as described in the terms of the Securities will be set forth in an Officers’ Certificate delivered to the Trustee no later than the close of business the Business Day prior to the Redemption Date.

Any notice of redemption may, at the Issuer’s discretion, be subject to one or more restrictions or conditions, including completion of an equity offering or other corporate transaction. If any such restriction or condition has not been satisfied, the Issuer will provide notice to the Trustee no later than the close of business the Business Day prior to the Redemption Date that such condition precedent has not been satisfied, the notice of redemption is rescinded or delayed and the redemption subject to the satisfaction of such restriction or condition shall not occur or shall be delayed. The Trustee shall promptly send a copy of such notice to the Holders of the Securities.

41

Section 1103. Selection by Trustee of Securities to Be Redeemed.

If less than all the Securities of any series are to be redeemed (unless all the Securities of such series and of a specified tenor are to be redeemed or unless such redemption affects only a single Security), the particular Securities to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the Outstanding Securities of such series not previously called for redemption, by such method as the Trustee shall deem fair and appropriate and which may provide for the selection for redemption of a portion of the principal amount of any Security of such series; provided that the unredeemed portion of the principal amount of any Security shall be in an authorized denomination (which shall not be less than the minimum authorized denomination) for such Security. If less than all the Securities of such series and of a specified tenor are to be redeemed (unless such redemption affects only a single Security), the particular Securities to be redeemed shall be selected not more than 60 days prior to the Redemption Date by the Trustee, from the Outstanding Securities of such series and specified tenor not previously called for redemption in accordance with the preceding sentence. Notwithstanding the foregoing, if the series of Securities to be redeemed are Global Securities and if less than all the Securities of such series are to be redeemed, the particular Securities to be redeemed shall be selected by the Depositary pursuant to Applicable Procedures.

If any Security selected for partial redemption is converted in part before termination of the conversion right with respect to the portion of the Security so selected, the converted portion of such Security shall be deemed (so far as may be) to be the portion selected for redemption. Securities which have been converted during a selection of securities to be redeemed shall be treated by the Trustee as Outstanding for the purpose of such selection.

The Trustee shall promptly notify the Issuer in writing of the Securities selected for redemption as aforesaid and, in case of any Securities selected for partial redemption as aforesaid, the principal amount thereof to be redeemed.

The provisions of the two preceding paragraphs shall not apply with respect to any redemption affecting only a single Security, whether such Security is to be redeemed in whole or in part. In the case of any such redemption in part, the unredeemed portion of the principal amount of the Security shall be in an authorized denomination (which shall not be less than the minimum authorized denomination) for such Security.

For all purposes of this Indenture, unless the context otherwise requires, all provisions relating to the redemption of Securities shall relate, in the case of any Securities redeemed or to be redeemed only in part, to the portion of the principal amount of such Securities which has been or is to be redeemed.

Section 1104. Notice of Redemption.

Notice of redemption shall be given by first-class mail (or in the case of Securities held in book-entry form, by electronic transmission), postage prepaid, mailed or sent not less than 30 nor more than 60 days prior to the Redemption Date (or within such period as otherwise specified as contemplated by Section 301 for Securities of a series), to each Holder of Securities to be redeemed, at such Holder’s address appearing in the Security Register.

All notices of redemption shall identify the Securities to be redeemed and shall state:

42

Notice of redemption of Securities to be redeemed at the election of the Issuer shall be given by the Issuer or, at the Issuer’s request (which may be rescinded or revoked at any time prior to the time at which the Trustee shall have given such notice to the Holders), if the Issuer shall have delivered to the Trustee, at least 5 Business Days prior to the date the notice is to be delivered to the Holders (unless a shorter period shall be satisfactory to the Trustee), an Officer’s Certificate requesting that the Trustee give such notice together with the notice to be given setting forth the information to be stated therein as provided in the preceding paragraph, by the Trustee in the name and at the expense of the Issuer. The notice, if sent in the manner herein provided, shall be conclusively presumed to have been given, whether or not the Holder receives such notice. In any case, failure to give such notice by mail or any defect in the notice to the Holder of any Security designated for redemption as a whole or in part shall not affect the validity of the proceedings for the redemption of any other Securities.

Section 1105. Deposit of Redemption Price.

By no later than 11:00 a.m. (New York City time) on any Redemption Date, the Issuer shall deposit or cause to be deposited with the Trustee or with a Paying Agent (or, if the Issuer is acting as Paying Agent, segregate and hold in trust as provided in Section 1003) an amount of money sufficient to pay the Redemption Price of, and (except if the Redemption Date shall be an Interest Payment Date or the Securities of the series provide otherwise) accrued interest on, all the Securities which are to be redeemed on that date, other than Securities or portions of Securities called for redemption which are owned by the Issuer or a Subsidiary and have been delivered by the Issuer or such Subsidiary to the Trustee for cancellation. All money, if any, earned on funds held by the Paying Agent shall be remitted to the Issuer. In addition, the Paying Agent shall promptly return to the Issuer any money deposited with the Paying Agent by the Issuer in excess of the amounts necessary to pay the Redemption Price of, and accrued interest, if any, on, all Securities to be redeemed.

If any Security called for redemption is converted, any money deposited with the Trustee or with any Paying Agent or so segregated and held in trust for the redemption of such Security shall (subject to any right of the Holder of such Security or any Predecessor Security to receive interest as provided in the last paragraph of Section 307 or in the terms of such Security) be paid to the Issuer upon Issuer Request or, if then held by the Issuer, shall be discharged from such trust.

Section 1106. Securities Payable on Redemption Date.

Notice of redemption having been given as aforesaid, the Securities so to be redeemed shall, on the Redemption Date, become due and payable at the Redemption Price therein specified, and from and after such date (unless the Issuer shall default in the payment of the Redemption Price and accrued interest) such Securities shall cease to bear interest. Upon surrender of any such Security for redemption in accordance with said notice, such Security shall be paid by the Issuer at the Redemption Price, together, if applicable, with accrued interest to the Redemption Date; provided, however, that, unless otherwise specified as contemplated by Section 301, installments of interest whose Stated Maturity is on or prior to the Redemption Date will be payable to the Holders of such Securities, or one or more Predecessor Securities, registered as such at the close of business on the relevant Record Dates according to their terms and the provisions of Section 307; provided further that, unless otherwise specified as contemplated by Section 301, if the Redemption Date is after a Regular Record Date and on or prior to the Interest Payment Date, the accrued and unpaid interest shall be payable to the Holder of the redeemed Securities registered on the relevant Regular Record Date.

43

If any Security called for redemption shall not be so paid upon surrender thereof for redemption, the principal and premium, if any, shall, until paid, bear interest from the Redemption Date at the rate prescribed therefor in the Security.

Section 1107. Securities Redeemed in Part.

Any Security which is to be redeemed only in part shall be surrendered at a Place of Payment (with, if the Issuer, the Guarantors or the Trustee so requires, due endorsement by, or a written instrument of transfer in form satisfactory to the Issuer, the Guarantors and the Trustee duly executed by, the Holder thereof or such Holder’s attorney duly authorized in writing), and the Issuer shall execute, and the Trustee shall authenticate and deliver to the Holder of such Security (or transfer by book entry) without service charge, a new Security or Securities of the same series and of like tenor, of any authorized denomination as requested by such Holder, in principal amount equal to and in exchange for the unredeemed portion of the principal of the Security so surrendered, with the Guarantee thereof of the Guarantors.

ARTICLE XII

SINKING FUNDS

Section 1201. Applicability of Article.

The provisions of this Article XII shall be applicable to any sinking fund for the retirement of Securities of any series except as otherwise specified as contemplated by Section 301 for such Securities.

The minimum amount of any sinking fund payment provided for by the terms of any series of Securities is herein referred to as a “mandatory sinking fund payment,” and any payment in excess of such minimum amount provided for by the terms of such Securities is herein referred to as an “optional sinking fund payment.” If provided for by the terms of any series of Securities, the cash amount of any sinking fund payment may be subject to reduction as provided in Section 1202. Each sinking fund payment shall be applied to the redemption of Securities of the series as provided for by the terms of such Securities.

Section 1202. Satisfaction of Sinking Fund Payments with Securities.

The Issuer and the Guarantors (1) may deliver Outstanding Securities of a series (other than any previously called for redemption) and (2) may apply as a credit Securities of a series which have been redeemed either at the election of the Issuer pursuant to the terms of such Securities or through the application of permitted optional sinking fund payments pursuant to the terms of such Securities, in each case in satisfaction of all or any part of any sinking fund payment with respect to any Securities of such series required to be made pursuant to the terms of such Securities as and to the extent provided for by the terms of such Securities; provided that the Securities to be so credited have not been previously so credited. The Securities to be so credited shall be received and credited for such purpose by the Trustee at the Redemption Price, as specified in the Securities so to be redeemed, for redemption through operation of the sinking fund and the amount of such sinking fund payment shall be reduced accordingly.

Section 1203. Redemption of Securities for Sinking Fund.

Not less than 60 days (or such shorter period as shall be satisfactory to the Trustee) prior to each sinking fund payment date for any Securities, the Issuer will deliver to the Trustee an Officer’s Certificate specifying the amount of the next ensuing sinking fund payment for such Securities pursuant to the terms of such Securities, the portion thereof, if any, which is to be satisfied by payment of cash and the portion thereof, if any, which is to be satisfied by delivering and crediting Securities pursuant to Section 1202 and will also deliver to the Trustee any Securities to be so delivered. Not less than 30 days prior to each such sinking fund payment date, the Trustee shall select the Securities to be redeemed upon such sinking fund payment date in the manner specified in Section 1103 and cause notice of the redemption thereof to be given in the name of and at the expense of the Issuer in the manner provided in Section 1104. Such notice having been duly given, the redemption of such Securities shall be made upon the terms and in the manner stated in Sections 1106 and 1107.

44

ARTICLE XIII

DEFEASANCE AND COVENANT DEFEASANCE

Section 1301. Issuer’s or Guarantors’ Option to Effect Defeasance or Covenant Defeasance.

Unless otherwise provided as contemplated by Section 301, Sections 1302 and 1303 shall apply to all Securities and each series of Securities, and the Guarantees thereof, denominated in U.S. dollars and bearing interest at a fixed rate, in accordance with any applicable requirements provided pursuant to Section 301 and upon compliance with the conditions set forth below in this Article XIII; and the Issuer or any Guarantor may elect, at its option at any time, to have Sections 1302 and 1303 applied to any Securities or any series of Securities and, in each case, the Guarantees thereof, designated pursuant to Section 301 as being defeasible pursuant to such Section 1302 or 1303, in accordance with any applicable requirements provided pursuant to Section 301 and upon compliance with the conditions set forth below in this Article XIII. Any such election shall be evidenced by a Board Resolution, Officer’s Certificate or in another manner specified as contemplated by Section 301 for such Securities.

Section 1302. Defeasance and Discharge.

Upon the Issuer’s or the Guarantors’ exercise of their option, if any, to have this Section 1302 applied to any Securities or any series of Securities, and the Guarantees thereof, or if this Section 1302 shall otherwise apply to any Securities or any series of Securities, each of the Issuer and the Guarantors shall be deemed to have been discharged from their obligations with respect to such Securities and Guarantees as provided in this Section 1302 on and after the date the conditions set forth in Section 1304 are satisfied (hereinafter called “Defeasance”). For this purpose, such Defeasance means that each of the Issuer and the Guarantors shall be deemed to have paid and discharged the entire indebtedness represented by such Securities and Guarantees and to have satisfied all its other obligations under such Securities and Guarantees and this Indenture insofar as such Securities and Guarantees are concerned (and the Trustee, at the expense of the Issuer or the Guarantors, as the case may be, shall execute proper instruments acknowledging the same), subject to the following which shall survive until otherwise terminated or discharged hereunder: (1) the rights of Holders of such Securities to receive, solely from the trust fund described in Section 1304 and as more fully set forth in such Section 1305, payments in respect of the principal of and premium, if any, and interest on such Securities when payments are due, (2) the Issuer’s obligations with respect to such Securities and the Guarantors’ obligations with respect to such Guarantees under Sections 304, 305, 306, 1002 and 1003, (3) the rights, powers, trusts, duties and immunities of the Trustee hereunder and (4) this Article XIII. Subject to compliance with this Article XIII, the Issuer or the Guarantors may exercise their option, if any, to have this Section 1302 applied to the Securities of any series and the Guarantees thereof notwithstanding the prior exercise of its option, if any, to have Section 1303 applied to such Securities and Guarantees.

Section 1303. Covenant Defeasance.

Upon the Issuer’s or the Guarantors’ exercise of their option, if any, to have this Section 1303 applied to any Securities or any series of Securities, and the Guarantees thereof, or if this Section 1303 shall otherwise apply to any Securities or any series of Securities, and the Guarantees thereof, (1) the Issuer shall be released from its obligations under, and the Guarantors shall have no liability in respect of, Section 801(3), any similar provision contained in any supplemental indenture to this Indenture applicable to the Guarantors and any covenants provided pursuant to Section 301(19), Section 901(1) or Section 901(8) for the benefit of the Holders of such Securities and (2) the occurrence of any event specified in Section 501(4) and Section 501(7) shall be deemed not to be or result in an Event of Default, in each case with respect to such Securities and Guarantees as provided in this Section 1303 on and after the date the conditions set forth in Section 1304 are satisfied (hereinafter called “Covenant Defeasance”). For this purpose, such Covenant Defeasance means that, with respect to such Securities and Guarantees, each of the Issuer and the Guarantors may omit to comply with and shall have no liability in respect of any term, condition or limitation set forth in any such specified Section, whether directly or indirectly by reason of any reference elsewhere herein to any such Section or by reason of any reference in any such Section to any other provision herein or in any other document, but the remainder of this Indenture and such Securities and Guarantees shall be unaffected thereby.

45

Section 1304. Conditions to Defeasance or Covenant Defeasance.

The following shall be the conditions to the application of Section 1302 or 1303 to any Securities or any series of Securities, and the Guarantees thereof:

46

Before or after a deposit, the Issuer or the Guarantors may make arrangements satisfactory to the Trustee for the redemption of Securities at a future date in accordance with Article XI.

Section 1305. Deposited Money and U.S. Government Obligations to Be Held in Trust; Miscellaneous Provisions.

Subject to the provisions of the last paragraph of Section 1003, all money and U.S. Government Obligations (including the proceeds thereof) deposited with the Trustee or other qualifying trustee (solely for purposes of this Section 1305 and Section 1306, the Trustee and any such other trustee are referred to collectively as the “Trustee”) pursuant to Section 1304 in respect of any Securities shall be held in trust and applied by the Trustee, in accordance with the provisions of such Securities and this Indenture, to the payment, either directly or through any such Paying Agent (including the Issuer acting as Paying Agent) as the Trustee may determine, to the Holders of such Securities, of all sums due and to become due thereon in respect of principal and premium, if any, and interest, but money so held in trust need not be segregated from other funds except to the extent required by law.

The Issuer or the Guarantors shall pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the U.S. Government Obligations deposited pursuant to Section 1304 or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of Outstanding Securities; provided that the Trustee shall be entitled to charge any such tax, fee or other charge to such Holder’s account.

Anything in this Article XIII to the contrary notwithstanding, the Trustee shall deliver or pay to the Issuer or the Guarantors from time to time upon Issuer Request or Guarantor Request, accompanied by the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee, as the case may be, any money or U.S. Government Obligations held by it as provided in Section 1304 with respect to any Securities which are in excess of the amount thereof which would then be required to be deposited to effect the Defeasance or Covenant Defeasance, as the case may be, with respect to such Securities.

Section 1306. Reinstatement.

If the Trustee or the Paying Agent is unable to apply any money in accordance with this Article XIII with respect to any Securities (and the Guarantees thereof) by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the obligations under this Indenture and such Securities and Guarantees from which the Issuer or the Guarantors have been discharged or released pursuant to Section 1302 or 1303 shall be revived and reinstated as though no deposit had occurred pursuant to this Article XIII with respect to such Securities and Guarantees, until such time as the Trustee or Paying Agent is permitted to apply all money held in trust pursuant to Section 1305 with respect to such Securities and Guarantees in accordance with this Article XIII; provided, however, that (a) if the Issuer or the Guarantors make any payment of principal of or premium, if any, or interest on any such Security following such reinstatement of its obligations, the Issuer or the Guarantors, as the case may be, shall be subrogated to the rights, if any, of the Holders of such Securities to receive such payment from the money so held in trust and (b) unless otherwise required by any legal proceeding or any order

47

or judgment of any court or governmental authority, the Trustee or Paying Agent shall return all such money and U.S. Government Obligations to the Issuer or the Guarantors, as the case may be, promptly after receiving a written request therefor at any time, if such reinstatement of the obligations of the Issuer or the Guarantors, as the case may be, has occurred and continues to be in effect.

ARTICLE XIV

GUARANTEES

Section 1401. Guarantees.

The Securities of each series shall be guaranteed by such Guarantors, and on such terms and subject to such conditions, as shall be established pursuant to Section 301 with respect to the Securities of such series. The Person(s) who shall initially be the Guarantors of the Securities of any series may, but need not, include any or all of the Initial Guarantors and may include any and all such other Persons as the Issuer may determine; provided that prior to the initial issuance of Securities that are to be guaranteed by a Person that is not an Initial Guarantor (or, if provided by the terms of this Indenture, a successor to an Initial Guarantor), the parties hereto and such Person shall enter into a supplemental indenture pursuant to Section 901 hereof whereby such Person shall become a Guarantor under this Indenture.

Anything in this Indenture, the Securities or any Guarantee to the contrary notwithstanding, the obligations of each Guarantor under its Guarantees and this Indenture shall be limited to the maximum amount as will, after giving effect to such maximum amount and all other contingent and fixed liabilities of such Guarantor (including any other Guarantees), result in the obligations of such Guarantor under its Guarantees and this Indenture not constituting a fraudulent transfer or conveyance under any Bankruptcy Law or any similar federal, state or foreign law affecting the rights of creditors generally.

No Guarantee shall be valid and obligatory for any purpose with respect to any Security until the certificate of authentication or such Security shall have been signed by or on behalf of the Trustee.

* * *

This Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

[Signature page follows]

48

IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly executed and attested, all as of the day and year first written above.

SCHEDULE I

INITIAL GUARANTORS

Allegion plc

Exhibit 4.2

Execution Version

ALLEGION US HOLDING COMPANY INC., as ISSUER,

ALLEGION PLC, as GUARANTOR

AND

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION

as TRUSTEE

FIRST SUPPLEMENTAL INDENTURE

Dated as of May 29, 2024

To

Indenture Dated as of May 29, 2024

THIS FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of May 29, 2024, is among ALLEGION US HOLDING COMPANY INC., a corporation duly organized under the laws of the State of Delaware (the “Issuer”), ALLEGION PLC, a public limited company duly organized and existing under the laws of Ireland (the “Guarantor”), and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, acting as trustee under the Indenture referred to below (the “Trustee”).

WITNESSETH:

WHEREAS, the Issuer and the Guarantor have duly authorized, executed and delivered an Indenture dated as of May 29, 2024, among the Issuer, the Guarantor and the Trustee (the “Indenture”), to provide for the issuance from time to time of Securities and guarantees thereof;

WHEREAS, Section 901 of the Indenture provides, among other things, that the Issuer, the Guarantor and the Trustee may enter into indentures supplemental to the Indenture for, among other things, the purpose of establishing the form and terms of the Securities of any series and guarantees thereof, as permitted under Sections 201 and 301 of the Indenture;

WHEREAS, the Issuer has determined to issue a series of senior unsecured debt Securities of the Issuer entitled the “5.600% Senior Notes due 2034” (the “Notes”), with such series guaranteed by the Guarantor pursuant to this Supplemental Indenture;

WHEREAS, the Guarantor has determined to provide the Guarantee (as defined herein);

WHEREAS, the Issuer and the Guarantor have each duly authorized the execution and delivery of this Supplemental Indenture in all respects in order to provide for certain supplements to the Indenture, which shall only be applicable to the Notes and the related Guarantee;

WHEREAS, the form of note, the certificate of authentication to be borne by each Note, and the Form of Change of Control Repurchase Event Notice to be borne by the Notes are to be substantially in the forms hereinafter provided;

WHEREAS, all acts and things necessary to make this Supplemental Indenture a valid and binding agreement of each of the Issuer and the Guarantor according to its terms have been done and performed;

WHEREAS, all acts and things necessary to make the Notes, when executed by the Issuer and authenticated and delivered by the Trustee as provided in the Indenture and this Supplemental Indenture, the valid and binding obligations of the Issuer have been done and performed; and

WHEREAS, all acts and things necessary to make the related Guarantee, when the Notes are executed by the Issuer and authenticated and delivered by the Trustee as provided in the Indenture and this Supplemental Indenture, the valid and binding obligation of the Guarantor have been done and performed.

NOW, THEREFORE, in consideration of the premises and of the purchase and acceptance of the Notes by the Holders thereof, each of the Issuer and the Guarantor covenants and agrees with the Trustee for the benefit of each other and for the equal and proportionate benefit of the respective holders from time to time of the Notes (except as otherwise provided below) to supplement the Indenture, only for purposes of the Notes and the related Guarantee, as follows:

ARTICLE ONE

DEFINITIONS

Section 101. Definitions. For all purposes of this Supplemental Indenture, except as otherwise expressly provided or unless the context otherwise requires, (i) references to any Article, Section or subdivision thereof are references to an Article, Section or other subdivision of this Supplemental Indenture and (ii) capitalized terms not otherwise defined herein shall have the meanings set forth in the Indenture. For purposes of this Supplemental Indenture, the following definitions are applicable:

“Attributable Debt” in respect of a Sale-Leaseback Transaction means, at the time of the determination, the present value of the obligation of the lessee for net rental payments during the remaining term of the lease included in such Sale-Leaseback Transaction including any period for which such lease has been extended or may, at the option of the lessor, be extended. Such present value shall be calculated using a discount rate equal to the rate of interest implicit in such transaction, determined in accordance with U.S. generally accepted accounting principles (“GAAP”).

“Capital Stock” means:

but excluding from all of the foregoing any debt securities convertible into Capital Stock, whether or not such debt securities include any right of participation with Capital Stock.

“Consolidated Net Tangible Assets” means the aggregate amount of the Guarantor’s and its consolidated subsidiaries’ assets (less applicable reserves and other properly deductible items) after deducting therefrom (a) all current liabilities (excluding any current liabilities constituting Funded Debt by reason of being extendible or renewable), (b) all goodwill, trade names, trademarks, patents, unamortized debt discount and expense and other like intangibles and (c)

2

minority equity interests in any of the Guarantor’s subsidiaries that are not wholly-owned subsidiaries, all as set forth on or included in the Guarantor’s balance sheet for its most recent completed fiscal quarter for which internal financial statements are available computed in accordance with GAAP.

“Financing Lease Obligation” means an obligation that is required to be accounted for as a financing or capital lease (and, for the avoidance of doubt, not a straight-line or operating lease) on both the balance sheet and income statement for financial reporting purposes in accordance with GAAP. At the time any determination thereof is to be made, the amount of the liability in respect of a financing or capital lease would be the amount required to be reflected as a liability on such balance sheet (excluding the footnotes thereto) in accordance with GAAP.

“Funded Debt” means all Indebtedness, whether or not evidenced by a bond, debenture, note or similar instrument or agreement, of any Person, for the repayment of borrowed money having a maturity of more than 12 months from the date of its creation or having a maturity of less than 12 months from the date of its creation but by its terms being renewable or extendible beyond 12 months from such date at the option of such Person. For the purpose of determining “Funded Debt” of any Person, there will be excluded any particular Indebtedness if, on or prior to the maturity thereof, there will have been deposited with the proper depository in trust the necessary funds for the payment, redemption or satisfaction of such Indebtedness.

“Hedging Obligations” means, with respect to any Person, the obligations of such Person under any interest rate swap agreement, interest rate cap agreement, interest rate collar agreement, commodity swap agreement, commodity cap agreement, commodity collar agreement, foreign exchange contract, currency swap agreement or similar agreement providing for the transfer or mitigation of interest rate, commodity price or currency risks either generally or under specific contingencies.

“Indebtedness” means, with respect to any specified Person, any indebtedness of such Person, whether or not contingent:

if and to the extent any of the preceding items (other than letters of credit and Hedging Obligations) would appear as a liability upon a balance sheet of the specified Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes all indebtedness of others secured by a Lien on any asset of the specified Person (whether or not such Indebtedness is assumed by the specified Person) and, to the extent not otherwise included, the Guarantee by the specified Person of any Indebtedness of any other Person.

3

The amount of any Indebtedness outstanding as of any date will be:

“Issue Date” means the date hereof.

“Lien” means, with respect to any asset, any mortgage, lien, pledge, charge, security interest or encumbrance of any kind in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law, including any conditional sale or other title retention agreement, any lease in the nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction.

“Permitted Liens” means:

4

“Person” means an individual, corporation, partnership, limited liability company, joint venture, association, joint stock company, trust, unincorporated organization, governmental authority or other entity of whatever nature.

“Principal Property” means any manufacturing plant, warehouse or other similar facility or any parcel of real estate or group of contiguous parcels of real estate owned by the Guarantor or any of its subsidiaries (whether owned on the Issue Date or thereafter acquired) that has a gross book value on the date as of which the determination is being made, without deduction of any depreciation reserves, exceeding 3% of Consolidated Net Tangible Assets.

ARTICLE TWO

TERMS AND CONDITIONS OF THE NOTES AND THE RELATED GUARANTEE

Section 201. Designation, Principal Amount and Terms. (a) There is hereby authorized and established, pursuant to Section 301 of the Indenture, a series of senior unsecured debt Securities of the Issuer designated as the “5.600% Senior Notes due 2034,” with such series guaranteed by the Guarantor pursuant to Section 212 hereof.

(b) The Notes shall be executed, authenticated and delivered in accordance with the provisions of, and the Notes and the Guarantee shall in all respects be subject to, the terms, conditions and covenants of the Indenture and this Supplemental Indenture (including the form of note set forth in Exhibit A hereto). Subject to Section 203 hereof, the aggregate principal amount of the Notes which may initially be authenticated and delivered under this Supplemental Indenture shall be $400,000,000, which Notes shall initially be issued in global form.

Section 202. Redemption. The Notes shall be redeemable at the option of the Issuer and upon the occurrence of certain tax events as set forth in Sections 5(a) and 5(b) of the form of note attached hereto as Exhibit A, respectively. The Notes shall also be redeemable by the Issuer or third parties as set forth in Section 206 below. Notwithstanding anything in the Indenture to the contrary, the Notes shall not be subject to a sinking fund.

5

Section 203. Additional Issuances. The Issuer may, at any time, without the consent of the Holders of the Notes, issue additional Notes of the same series having the same ranking and the same interest rate, maturity and other terms as any of the existing Notes. Any additional Notes having such similar terms, together with the existing Notes, will constitute a single series of Notes under the Indenture and this Supplemental Indenture; provided, however, if the additional Notes are not fungible with the existing Notes of such series for U.S. federal income tax purposes, such additional Notes shall have a different CUSIP number.

Section 204. Selection and Notice. With respect to any partial redemption or repurchase of the Notes, if less than all of the Notes are to be redeemed or repurchased at any given time, selection of such Notes for redemption or repurchase will be made by the Trustee (i) if such Notes are listed on any securities exchange, in compliance with the requirements of the principal securities exchange on which such Notes are listed, (ii) on a pro rata basis to the extent practicable or such other method that the Trustee deems fair and appropriate or (iii) by lot or such other similar method in accordance with the Applicable Procedures; provided, that no Notes of $1,000 or less shall be redeemed or repurchased in part. If any Note is to be purchased or redeemed in part only, any notice of purchase or redemption that relates to such Note shall state the portion of the principal amount thereof that has been or is to be purchased or redeemed. If any Notes are to be purchased or redeemed in part only, the Issuer shall issue a new Note (or cause to be transferred by book entry) in principal amount equal to the unredeemed or unpurchased portion of the original Note in the name of the Holder thereof upon cancellation of the original Note; provided that each new Note will be in a principal amount equal to $1,000 or any integral multiple of $1,000 in excess thereof. The Notes called for redemption or repurchase become due on the date fixed for redemption or repurchase. On and after the redemption or repurchase date, unless the Issuer defaults in payment of the redemption or repurchase price, interest shall cease to accrue on the Notes or portions thereof called for redemption or repurchase.

Any notice of redemption may, at the Issuer’s discretion, be subject to one or more restrictions or conditions, including completion of an equity offering or other corporate transaction. If any such restriction or condition has not been satisfied, the Issuer will provide notice to the Trustee no later than the close of business the Business Day prior to the Redemption Date that such condition precedent has not been satisfied, the notice of redemption is rescinded or delayed and the redemption subject to the satisfaction of such restriction or condition shall not occur or shall be delayed.

This Section 204 and the notice periods for redemptions and repurchases set forth in Sections 5(a) and5(b) of the form of note attached hereto as Exhibit A and Section 206 below shall apply notwithstanding anything to the contrary in Article XI of the Indenture.

Section 205. Additional Amounts.

The Guarantor shall make all payments under or with respect to the Guarantee free and clear of and without withholding or deduction for or on account of any present or future tax, duty, levy, impost, assessment or other governmental charge (including penalties, interest and other liabilities related thereto) (hereinafter “Taxes”) imposed or levied by or on behalf of (i) Ireland or any political subdivision or any authority or agency therein or thereof having power to

6

tax, (ii) any other jurisdiction in which the Guarantor is organized or is otherwise resident for tax purposes or any political subdivision or any authority or agency therein or thereof having the power to tax, or (iii) any jurisdiction from or through which payment under or with respect to the Guarantee is made or any political subdivision or any authority or agency therein or thereof having the power to tax (each a “Relevant Taxing Jurisdiction”), unless the withholding or deduction of such Taxes is required by law or by the official interpretation or administration thereof.

If the Guarantor is so required to withhold or deduct any amount for or on account of Taxes imposed or levied by or on behalf of a Relevant Taxing Jurisdiction from any payment made under or with respect to the Guarantee, the Guarantor shall pay such additional amounts (“Additional Amounts”) as may be necessary so that the net amount received by a holder (including Additional Amounts) after such withholding or deduction (including any such withholding or deduction in respect of such Additional Amounts) will not be less than the amount such holder would have received if such Taxes had not been withheld or deducted; provided, however, that the foregoing obligation to pay Additional Amounts shall not apply to (1) any Taxes that would not have been so imposed but for the existence of any present or former connection between the Holder, applicable recipient of payment or beneficial owner of the Notes or any payment in respect of such Notes (each, a “relevant holder”) (or between a fiduciary, settlor, beneficiary, member or shareholder of, or possessor of power over, the relevant holder, if the relevant holder is an estate, nominee, partnership, trust, corporation or other business entity) and the Relevant Taxing Jurisdiction (including being a citizen or resident or national of, or carrying on a business or maintaining a permanent establishment in, or being physically present in, the Relevant Taxing Jurisdiction, but excluding a connection arising solely from the acquisition, ownership or holding of such Note or the receipt of any payment in respect of such Note or the Guarantee or the exercise or enforcement of rights under such Note or the Guarantee); (2) any estate, inheritance, gift, sales, use, value added, excise, transfer, personal property tax or similar tax, assessment or governmental charge; (3) any Taxes imposed as a result of the failure of the relevant holder of the Notes to comply with a timely request in writing of the Issuer or the Guarantor (such request being made at a time that would enable such relevant holder acting reasonably to comply with that request) to provide information concerning such relevant holder’s nationality, residence, identity or connection with any Relevant Taxing Jurisdiction, if and to the extent that due and timely compliance with such request under applicable law, regulation or administrative practice would have reduced or eliminated such Taxes with respect to such relevant holder; (4) any Taxes that are payable other than by deduction or withholding from a payment on the Guarantee; (5) any Taxes that would not have been so imposed if the relevant holder had presented the Note for payment (where presentation is required) to, or otherwise accepted payment from, another paying agent in a member state of the European Union; or (6) any Taxes withheld or deducted pursuant to Sections 1471 through 1474 of the Internal Revenue Code of 1986, as amended, or any comparable or successor version of such Sections, any U.S. Treasury regulations promulgated thereunder, any official interpretations thereof or any agreements or treaties (including any law implementing any such agreement or treaty) entered into in connection with the implementation thereof; nor will the Guarantor pay Additional Amounts (a) to the extent the payment could have been made without such deduction or withholding if the Note had been presented for payment (where presentation is permitted or required for payment) within 30 days after the date on which such payment or such Note became due and payable or the date on which payment thereof is duly provided for, whichever is later,

7

(b) with respect to any payment on a Note to any holder who is a fiduciary or partnership (including an entity treated as a partnership for tax purposes) or any person other than the sole beneficial owner of such payment, to the extent that a beneficiary or settlor with respect to such fiduciary, a member of such a partnership or the beneficial owner of such payment would not have been entitled to the Additional Amounts had such beneficiary, settlor, member or beneficial owner been the actual holder of such Note, or (c) in respect of any Note to the extent such withholding or deduction is imposed as a result of any combination of clauses (1), (2), (3), (4), (5), (6), (a) and (b) of this paragraph.

The Guarantor shall make any required withholding or deduction and remit the full amount deducted or withheld to the Relevant Taxing Jurisdiction in accordance with applicable law. The Guarantor shall provide the Trustee, for the benefit of the Holders, with official receipts evidencing the payment of any Taxes so withheld or deducted. If, notwithstanding the Guarantor’s efforts to obtain such receipts, the same are not obtainable, the Guarantor shall provide the Trustee with other evidence. In no event, however, shall the Guarantor be required to disclose any information that the Guarantor reasonably deems to be confidential.

If the Guarantor is or will become obligated to pay Additional Amounts under or with respect to any payment made on the Guarantee, at least 30 days prior to the date of such payment, the Guarantor shall deliver to the Trustee an Officer’s Certificate stating that Additional Amounts will be payable and the amount so payable and such other information necessary to enable the Paying Agent to pay Additional Amounts to holders on the relevant payment date. Whenever in the Indenture, this Supplemental Indenture or the Notes there is mentioned, in any context:

such reference shall be deemed to include payment of Additional Amounts as described under this Section 205 to the extent that, in such context, Additional Amounts are, were or would be payable in respect thereof. Neither the Trustee nor the Paying Agent shall have any responsibility or liability for the determination, verification or calculation of any Additional Amounts.

The Issuer shall pay any present or future stamp, court or documentary Taxes or any other excise, property or similar Taxes that arise in the United States or in any Relevant Taxing Jurisdiction from the execution, delivery, enforcement or registration of the Notes, the Indenture, this Supplemental Indenture, the Guarantee or any other document or instrument in relation thereto, and will agree to indemnify the relevant holders for any such Taxes paid by such holders. The obligations described under this Section 205 will survive any termination, defeasance or discharge of the Indenture and any transfer of the Notes and will apply, mutatis mutandis, to any jurisdiction in which any successor to the Guarantor is organized or resident for tax purposes or any political subdivision or taxing authority or agency thereof or therein (each of which shall also be treated as a Relevant Taxing Jurisdiction).

8

Section 206. Offer to Repurchase Upon Change of Control Repurchase Event.

If a Change of Control Repurchase Event occurs with respect to the Notes, except to the extent the Issuer has exercised its right to redeem the Notes as described in Section 5 of the form of note attached hereto as Exhibit A, the Issuer shall make an offer to each Holder of the Notes to repurchase all or any part (in minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof) of that Holder’s Notes at a repurchase price (the “repurchase price”) in cash equal to 101% of the aggregate principal amount of such Notes repurchased plus any accrued and unpaid interest on such Notes repurchased to, but not including, the repurchase date. Within 30 days following a Change of Control Repurchase Event or, at the Issuer’s option, prior to a Change of Control, but after the public announcement of such Change of Control, the Issuer shall mail, or cause to be mailed, or otherwise deliver in accordance with the Applicable Procedures, a notice to each Holder of the Notes, with a copy to the Trustee, describing the transaction or transactions that constitute or may constitute the Change of Control Repurchase Event and offering to repurchase the Notes on the payment date specified in the notice (such offer the “repurchase offer” and such date the “repurchase date”), which repurchase date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed or delivered, pursuant to the procedures described in such notice. The notice shall, if mailed or delivered prior to the date of consummation of the Change of Control, state that the repurchase offer is conditioned on a Change of Control Repurchase Event occurring on or prior to the repurchase date.

The Issuer shall comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Repurchase Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control Repurchase Event provisions of this Section 206, the Issuer shall comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under this Section 206 by virtue of such conflict.

On the repurchase date following a Change of Control Repurchase Event, the Issuer shall, to the extent lawful:

The Trustee shall promptly mail, or cause the Paying Agent to promptly mail, or otherwise deliver in accordance with the Applicable Procedures, to each Holder of the Notes, or portions of the Notes, properly tendered and accepted for payment by the Issuer the repurchase price for such Notes, or portions of the Notes.

9

The Issuer shall not be required to make a repurchase offer upon a Change of Control Repurchase Event if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements for such an offer made by the Issuer and such third party purchases all the Notes or portions of the Notes properly tendered and not withdrawn under its offer.

If Holders of not less than 90% in aggregate principal amount of the outstanding Notes validly tender and do not withdraw such Notes in connection with a Change of Control Repurchase Event and the Issuer, or any third party making a repurchase offer in lieu of the Issuer as described above, purchases all of the Notes validly tendered and not withdrawn by such Holders, the Issuer or such third party shall have the right, upon not less than 10 days’ nor more than 60 days’ prior notice, provided, that such notice is given not more than 30 days following such repurchase date pursuant to the repurchase offer described above, to redeem all the Notes that remain outstanding following such repurchase date on a date and at a price in cash equal to the repurchase price described above.

For purposes of this Section 206, the following definitions are applicable:

“Below Investment Grade Ratings Event” means, with respect to the Notes, on any day within the 60-day period (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for a possible downgrade by any Rating Agency) after the earlier of (1) the occurrence of a Change of Control, or (2) public announcement of the occurrence of a Change of Control or the Issuer’s intention to effect a Change of Control, the Notes are rated below Investment Grade by at least two of the three Rating Agencies. Notwithstanding the foregoing, a Below Investment Grade Ratings Event otherwise arising by virtue of a particular reduction in rating shall not be deemed to have occurred in respect of a particular Change of Control (and thus shall not be deemed a Below Investment Grade Ratings Event for purposes of the definition of Change of Control Repurchase Event hereunder) if the Rating Agencies making the reduction in rating to which this definition would otherwise apply do not publicly announce or publicly confirm or inform the Issuer or the Guarantor in writing that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the applicable Change of Control (whether or not the applicable Change of Control shall have occurred at the time of the Below Investment Grade Ratings Event).

“Change of Control” means the occurrence of any of the following: (a) the consummation of any transaction (including, without limitation, any merger or consolidation) the result of which is that any “person” or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act), other than (1) the Guarantor or any of its subsidiaries, (2) any employee benefit plan (or a trust forming a part thereof) maintained by the Guarantor or any of its subsidiaries, or (3) any underwriter temporarily holding Voting Stock of the Guarantor pursuant to an offering of such Voting Stock, becomes the beneficial owner (as defined in Rules 13d-3 and 13d-5 under the Exchange Act), directly or indirectly, of more than 50% of the combined voting power of the Guarantor’s Voting Stock or other Voting Stock into which the Guarantor’s Voting Stock is

10

reclassified, consolidated, exchanged or changed measured by voting power rather than number of shares; (b) the direct or indirect sale, lease, transfer, conveyance or other disposition (other than by way of merger or consolidation), in one or a series of related transactions, of all or substantially all of the assets of the Guarantor and its subsidiaries taken as a whole to any “person” or “group” (as those terms are used in Section 13(d)(3) of the Exchange Act) other than to the Guarantor or one of its subsidiaries; or (c) the Guarantor consolidates with, or merges with or into, any person, or any person consolidates with, or merges with or into, the Guarantor, in any such event pursuant to a transaction in which any of the outstanding Voting Stock of the Guarantor or such other person is converted into or exchanged for cash, securities or other property, other than any such transaction where the shares of the Voting Stock of the Guarantor outstanding immediately prior to such transaction constitute, or are converted into or exchanged for, a majority of the Voting Stock of the surviving person immediately after giving effect to such transaction.

“Change of Control Repurchase Event” means the occurrence of both a Change of Control and a Below Investment Grade Ratings Event with respect to the Notes.

“Fitch” means Fitch Ratings Inc., and its successors.

“Investment Grade” means, with respect to Fitch, a rating of BBB- or better (or its equivalent under any successor rating categories of Fitch), with respect to Moody’s, a rating of Baa3 or better (or its equivalent under any successor rating categories of Moody’s), and with respect to S&P, a rating of BBB- or better (or its equivalent under any successor rating categories of S&P), or if the Notes are not then rated by Fitch, Moody’s or S&P an equivalent investment grade credit rating by any additional Rating Agency or Rating Agencies selected by the Issuer.

“Moody’s” means Moody’s Investors Service, Inc., a subsidiary of Moody’s Corporation, and its successors.

“Rating Agency” means (1) each of Fitch, Moody’s and S&P, and (2) if any of Fitch, Moody’s or S&P ceases to rate the Notes or fails to make a rating of the Notes publicly available for reasons outside of the Issuer’s control, a different “nationally recognized statistical rating organization” (as defined in Section 3(a)(62) of the U.S. Securities Act of 1933, as amended) selected by the Issuer as a replacement agency for Fitch, Moody’s or S&P, or each of them, as applicable.

“S&P” means S&P Global Ratings, a division of S&P Global Inc., and its successors.

“Voting Stock” of any specified “person” (as that term is used in Section 13(d)(3) of the Exchange Act) as of any date means the Capital Stock of such person that is at the time entitled to vote generally in the election of the board of directors of such person.

Section 207. Limitation on Liens.

Neither the Guarantor nor any of its subsidiaries may, directly or indirectly, create, incur, issue, assume, guarantee or otherwise become directly or indirectly liable, contingently or otherwise, with respect to any Indebtedness secured by a Lien (other than a Permitted Lien) upon

11

any Principal Property or upon the Capital Stock of any subsidiary (in each case, whether owned on the Issue Date or thereafter acquired) without equally and ratably securing the Notes then outstanding, unless the aggregate principal amount of all outstanding Indebtedness of the Guarantor and its subsidiaries that is secured by Liens (other than Permitted Liens) on any Principal Property or upon the Capital Stock of any subsidiary (in each case, whether owned on the Issue Date or thereafter acquired) plus the amount of all outstanding Attributable Debt incurred pursuant to Section 208(a) would not exceed 15% of Consolidated Net Tangible Assets calculated as of the date of the creation or incurrence of the Lien. This limitation does not apply to Permitted Liens.

Section 208. Limitation on Sale-Leaseback Transactions.

Neither the Guarantor nor any of its subsidiaries may sell any Principal Property (whether owned on the Issue Date or thereafter acquired) with the intention of taking back a lease of that property for a period of more than three years (including renewals at the option of the lessee) other than leases between the Guarantor and any of its subsidiaries or leases between such subsidiaries (a “Sale-Leaseback Transaction”), unless (a) after giving effect thereto, the aggregate amount of all outstanding Attributable Debt with respect to all such transactions, plus the amount of outstanding indebtedness secured by a Lien (other than a Permitted Lien) upon any Principal Property or upon the Capital Stock of any subsidiary (in each case, whether owned on the Issue Date or thereafter acquired) incurred without equally and ratably securing the Notes pursuant to Section 207 would not exceed 15% of Consolidated Net Tangible Assets calculated at the time of the transaction; or (b) within one year after such Sale-Leaseback Transaction, the Guarantor or such subsidiary applies an amount equal to the greater of the net proceeds of such Sale-Leaseback Transaction and the fair market value at the time of the transaction of the Principal Property so leased to the retirement of Funded Debt of the Guarantor or any of its subsidiaries.

Section 209. Reports and Other Information.

Notwithstanding that the Guarantor may not be required to be or remain subject to the reporting requirements of Section 13(a) or 15(d) of the Exchange Act, the Guarantor shall file with the Commission (unless such filing is not permitted under the Exchange Act or by the Commission), so long as any Notes are outstanding, the annual reports, information, documents and other reports that the Guarantor is required to file with the Commission pursuant to such Section 13(a) or 15(d) or would be so required to file if Guarantor were so subject.

Notwithstanding the foregoing, the Guarantor shall not be obligated to file such reports with the Commission if the Commission does not permit such filing, so long as the Guarantor provides such information to the Trustee and the Holders by the date the Guarantor would be required to file such information pursuant to the preceding paragraph. The requirements set forth in this paragraph and the preceding paragraph may be satisfied by delivering such information to the Trustee and posting copies of such information on a website (which may be nonpublic and may be maintained by the Guarantor or a third party) to which access will be given to Holders.

12

Delivery of such statements, reports, notices and other information and documents to the Trustee pursuant to any of the provisions of this Section 209 is for informational purposes only and the Trustee’s receipt of such shall not constitute actual or constructive notice of any information contained therein or determinable from information contained therein, including the Issuer’s compliance with any of its covenants hereunder (as to which the Trustee is entitled to rely exclusively on Officer’s Certificates). The Trustee shall not be obligated to monitor or confirm, on a continuing basis or otherwise, the Issuer’s or the Guarantor’s compliance with the covenants or with respect to any reports or other documents filed with the Commission or EDGAR or any website under this Supplemental Indenture, or participate in any conference calls.

Notwithstanding the foregoing, if at any time the Guarantor is no longer required under GAAP to consolidate the Issuer in its consolidated financial statements, the requirements set forth in this Section 209 shall apply to the Issuer, not the Guarantor.

Section 210. Consolidation, Merger and Sale of Assets.

The Issuer may consolidate with or merge with or into any other Person, and may sell, transfer, lease or convey all or substantially all of its properties and assets to another Person, provided that the following conditions are satisfied: (a) the Issuer is the continuing entity, or the resulting, surviving or transferee Person (the “Successor Issuer”) is a corporation, partnership, limited liability company, trust or other entity organized and validly existing under the laws of the United States of America, any state thereof or the District of Columbia and the Successor Issuer (if not the Issuer) will expressly assume, by supplemental indenture, all of the Issuer’s obligations under the Indenture and the Notes issued thereunder; (b) immediately after giving effect to that transaction, no default or event of default under the Indenture or this Supplemental Indenture with respect to the Notes has occurred and is continuing; (c) the Guarantor, unless it is the other party to the transactions described above, will by supplemental indenture confirm that its Guarantee shall apply to the obligations of the Successor Issuer (if not the Issuer) under the Indenture, this Supplemental Indenture and the Notes; and (d) the Issuer delivers to the Trustee an Officer’s Certificate and an Opinion of Counsel that the merger, consolidation, transfer, sale, lease or conveyance and any supplemental indenture, as the case may be, complies with the applicable provisions of the Indenture and this Supplemental Indenture.

The Guarantor may consolidate with or merge with or into any other Person, and may sell, transfer, lease or convey all or substantially all of its properties and assets to another Person, provided that the following conditions are satisfied: (a) the Guarantor is the continuing entity, or the resulting, surviving or transferee Person (the “Successor Guarantor”) is a corporation, partnership, limited liability company, trust or other entity organized and validly existing under the laws of the United States of America, any state thereof or the District of Columbia, any Member State of the European Union, Bermuda, Cayman Islands, British Virgin Islands, Gibraltar, the British Crown Dependencies, any member country of the Organisation for Economic Co-operation and Development, or any political subdivision of any of the foregoing, and the Successor Guarantor (if not the Guarantor) will expressly assume, by supplemental indenture, all of the Guarantor’s obligations under the Indenture and the Notes issued thereunder; (b) immediately after giving effect to that transaction, no default or event of default under the Indenture or this Supplemental Indenture with respect to the Notes has occurred and is continuing; and (c) the Guarantor delivers to the Trustee an Officer’s Certificate and an Opinion of Counsel that the merger, consolidation, transfer, sale, lease or conveyance and any supplemental indenture, as the case may be, complies with the applicable provisions of the Indenture and this Supplemental Indenture.

13

The Successor Issuer or Successor Guarantor, as the case may be, will succeed to, and be substituted for, the Issuer or the Guarantor, respectively, under the Indenture, this Supplemental Indenture and the Notes and the Issuer or the Guarantor, as the case may be, will automatically be released and discharged from its obligations under the Indenture, this Supplemental Indenture and the Notes.

For purposes of the Notes issued pursuant to this Supplemental Indenture only, this Section 210 replaces and supersedes Article VIII of the Indenture.

Section 211. Additional Events of Default.

In addition to the Events of Default specified in clauses (1) through (6) of Section 501 of the Indenture, the following shall be Events of Default with respect to the Notes:

Section 212. The Guarantee.

(a) Subject to this Section 212, the Guarantor hereby unconditionally and irrevocably guarantees on a senior unsecured basis the Notes and the obligations of the Issuer under the Indenture, this Supplemental Indenture and the Notes, and guarantees to each Holder of a Note authenticated and delivered by the Trustee, and to the Trustee for itself and on behalf of such Holder, that: (1) the principal of (and premium, if any) and interest on the Notes will be paid in

14

full when due, whether at Stated Maturity, by acceleration or otherwise (including the amount that would become due but for the operation of the automatic stay under Section 362(a) of the Bankruptcy Law), together with interest on the overdue principal, if any, and interest on any overdue interest, to the extent lawful, and all other obligations of the Issuer to the Holders or the Trustee hereunder or thereunder will be paid in full or performed, all in accordance with the terms hereof and thereof; and (2) in case of any extension of time of payment or renewal of any Notes or of any such other obligations, the same shall be paid in full when due or performed in accordance with the terms of the extension or renewal, whether at Stated Maturity, by acceleration or otherwise (the “Guarantee”).

The Guarantor hereby agrees (to the extent permitted by applicable law) that its obligations hereunder shall be unconditional, irrespective of the validity, regularity or enforceability of the Notes, the Indenture or this Supplemental Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder with respect to any provisions hereof or thereof, any release of any other guarantor, the recovery of any judgment against the Issuer, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of such Guarantor.

The Guarantor hereby waives (to the extent permitted by applicable law) the benefits of diligence, presentment, demand for payment, filing of claims with a court in the event of insolvency or bankruptcy of the Issuer, any right to require a proceeding first against the Issuer or any other Person, protest, notice and all demands whatsoever and covenants that the Guarantee shall not be discharged as to any Note except by complete performance of the obligations contained in such Note, the Indenture, this Supplemental Indenture and such Guarantee. The Guarantor acknowledges that the Guarantee is a guarantee of payment, performance and compliance when due and not of collection. The Guarantor hereby agrees that, in the event of a default in payment of principal (or premium, if any) or interest on such Note, whether at its Stated Maturity, by acceleration, purchase or otherwise, legal proceedings may be instituted by the Trustee on behalf of, or by, the Holder of such Note, subject to the terms and conditions set forth in this Supplemental Indenture, directly against such Guarantor to enforce the Guarantee without first proceeding against the Issuer or any other guarantor. The Guarantor agrees that if, after the occurrence and during the continuance of an Event of Default, the Trustee or any of the Holders are prevented by applicable law from exercising their respective rights to accelerate the maturity of the Notes, to collect interest on the Notes, or to enforce or exercise any other right or remedy with respect to the Notes, such Guarantor shall pay to the Trustee for the account of the Holder the amount that would otherwise have been due and payable had such rights and remedies been permitted to be exercised by the Trustee or any of the Holders.

If any Holder or the Trustee is required by any court or otherwise to return to the Issuer or the Guarantor, or any custodian, trustee, liquidator or other similar official acting in relation to either the Issuer or such Guarantor, any amount paid by any of them to the Trustee or such Holder, the Guarantee, to the extent theretofore discharged, shall be reinstated in full force and effect. The Guarantor further agrees that, as between it, on the one hand, and the Holders and the Trustee on the other hand, (1) subject to this Section 212, the maturity of the obligations guaranteed hereby may be accelerated as provided in the Indenture for the purposes of the Guarantee of such Guarantor notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (2) in the event of any acceleration of such obligation as provided in the Indenture, such obligations (whether or not due and payable) shall forthwith become due and payable by the Guarantor for the purpose of the Guarantee.

15

The Guarantee shall remain in full force and effect and continue to be effective should any petition be filed by or against the Issuer for liquidation or reorganization, should the Issuer become insolvent or make an assignment for the benefit of creditors or should a receiver or trustee be appointed for all or any significant part of the Issuer’s assets, and shall, to the fullest extent permitted by law, continue to be effective or be reinstated, as the case may be, if at any time payment and performance of the Notes are, pursuant to applicable law, rescinded or reduced in amount, or must otherwise be restored or returned by any obligee on the Notes, whether as a “voidable preference”, “fraudulent transfer” or otherwise, all as though such payment or performance had not been made. In the event that any payment or any part thereof, is rescinded, reduced, restored or returned, the Notes shall, to the fullest extent permitted by law, be reinstated and deemed reduced only by such amount paid and not so rescinded, reduced, restored or returned.

(b) In case any provision of the Guarantee shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby to the extent permitted by applicable law.

(c) The Guarantor shall be subrogated to all rights of Holders against the Issuer in respect of any amounts paid by such Guarantor pursuant to the provisions of Section 212(a) above; provided that, if an Event of Default has occurred and is continuing, the Guarantor shall be entitled to enforce or receive any payments arising out of, or based upon, such right of subrogation until all amounts then due and payable by the Issuer under the Indenture, this Supplemental Indenture and the Notes shall have been paid in full.

(d) The Guarantor hereby agrees that the Guarantee provided for hereby shall continue to be effective or be reinstated, as the case may be, if at any time, payment, or any part thereof, of any obligations or interest thereon is rescinded or must otherwise be restored by a Holder to the Issuer upon the bankruptcy or insolvency of the Issuer or any Guarantor.

(e) The Guarantor acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Indenture and this Supplemental Indenture and from its Guarantee and waivers pursuant to its Guarantee under this Section 212.

(f) For the avoidance of doubt, the Guarantee shall be subject to the limitations set forth in the second paragraph under Section 1401 of the Indenture.

(g) As of the Issue Date, there are no guarantors of the Notes other than the Guarantor.

(h) The Guarantee shall be effective upon the authentication of the Notes by the Trustee.

16

ARTICLE THREE

MISCELLANEOUS

Section 301. Execution as Supplemental Indenture. This Supplemental Indenture is hereby executed and shall be construed as an indenture supplemental to the Indenture and, as provided in the Indenture, this Supplemental Indenture forms a part thereof. The Indenture, except as supplemented and amended by this Supplemental Indenture, is in all respects hereby adopted, ratified and confirmed. To the extent the provisions of this Supplemental Indenture are inconsistent with the provisions of the Indenture, this Supplemental Indenture shall govern.

Section 302. Trust Indenture Act. If any provision hereof limits, qualifies or conflicts with another provision hereof which is required to be included in this Supplemental Indenture by any of the provisions of the Trust Indenture Act, such required provisions shall control.

Section 303. Effect of Headings. The Article and Section headings herein are for convenience only and shall not affect the construction hereof.

Section 304. Separability. In case any provision in this Supplemental Indenture or in any Note or related Guarantee shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby.

Section 305. The Trustee. The Trustee makes no representation as to and shall not be responsible in any manner for or in respect of the validity or sufficiency of this Supplemental Indenture, the Notes or the Guarantee or for or in respect of the recitals contained herein, all of which recitals are made solely by the Issuer and the Guarantor. The Trustee shall not be responsible or liable for the use or application by the Issuer of the Notes or the proceeds thereof. The Trustee shall not be responsible or liable for and makes no representation as to any act or omission of any Rating Agency or any rating with respect to the Notes. The Trustee shall have no obligation to determine or verify if any event has occurred or notify the Holders of any event dependent upon the rating of the Notes, or if the rating on the Notes has been changed, suspended or withdrawn by any Rating Agency. The Trustee shall have no obligation to determine or verify if any Change of Control or any other event has occurred or if a repurchase offer in connection with a Change of Control Repurchase Event is required to be made, or to notify the Holders of any such event. The Trustee shall have no responsibility or liability with respect to any information, statement or recital in any offering memorandum, prospectus, prospectus supplement or other disclosure material prepared or distributed with respect to the issuance of the Notes. All rights, powers, protections, privileges, immunities, indemnities and benefits granted or afforded to the Trustee under the Indenture shall be deemed incorporated herein by this reference and shall be deemed applicable to all actions taken, suffered or omitted by the Trustee under this Supplemental Indenture.

17

Section 306. Governing Law. This Supplemental Indenture, the Notes and the related Guarantee shall be governed by and construed in accordance with the laws of the State of New York.

Section 307. Counterparts and Electronic Signatures. This Supplemental Indenture may be executed in any number of counterparts, each of which so executed shall be deemed to be an original, but all such counterparts shall together constitute but one and the same instrument. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Supplemental Indenture as to the parties hereto and may be used in lieu of the original Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes. This Supplemental Indenture (and any document executed in connection with this Supplemental Indenture) shall be valid, binding, and enforceable against a party only when executed and delivered by an authorized individual on behalf of the party by means of (i) any electronic signature permitted by the federal Electronic Signatures in Global and National Commerce Act, state enactments of the Uniform Electronic Transactions Act, and/or any other relevant electronic signatures law, including relevant provisions of the Uniform Commercial Code (collectively, “Signature Law”); (ii) an original manual signature; or (iii) a faxed, scanned, or photocopied manual signature. Each electronic signature or faxed, scanned, or photocopied manual signature shall for all purposes have the same validity, legal effect, and admissibility in evidence as an original manual signature. For avoidance of doubt, original manual signatures shall be used for execution or indorsement of writings when required under the Uniform Commercial Code or other Signature Law due to the character or intended character of the writings.

[Remainder of page left intentionally blank.]

18

IN WITNESS WHEREOF, the parties hereto have caused this First Supplemental Indenture to be duly executed and attested, all as of the day and year first written above.

[Signature Page to First Supplemental Indenture]

[Signature Page to First Supplemental Indenture]

EXHIBIT A

Form of 5.600% Senior Notes due 2034

[Global Security Legend]

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (“DTC”) TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE REFERRED TO ON THE REVERSE HEREOF. TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN WHOLE, BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE REFERRED TO ON THE REVERSE HEREOF.

A-1

Allegion US Holding Company Inc., a Delaware corporation, promises to pay to [     ]¹, or registered assigns, the principal sum [of       U.S. dollars]² on May 29, 2034.

Interest Payment Dates: May 29 and November 29 (commencing on November 29, 2024).

Record Dates: May 14 and November 14

Additional provisions of this Note are set forth on the other side of this Note.

Dated:

¹ For Global Notes insert: Cede & Co.

² For Global Notes insert: set forth on the Schedule of Increases or Decreases of Global Note attached hereto

A-2

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

This is one of the Notes designated therein referred to in the within-mentioned Indenture.

Dated:

A-3

FORM OF REVERSE SIDE OF INITIAL NOTE

5.600% Senior Note due 2034

The Issuer will pay the principal of this Note on May 29, 2034.

The Issuer promises to pay interest on the principal amount of this Note on each Interest Payment Date at the rate of 5.600% per annum (subject to adjustment as provided below).

Interest will be payable semi-annually in arrears to the Holders of record of the Notes at the close of business on the Record Date immediately preceding the Interest Payment Date on each Interest Payment Date, commencing November 29, 2024, subject to the terms of the Indenture relating to Defaulted Interest.

Interest on this Note will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from May 29, 2024. Interest will be computed on the basis of a 360-day year of twelve 30-day months.

The Issuer shall pay interest on overdue principal and premium, if any, and interest on overdue installments of interest, to the extent lawful, at a rate per annum equal to the rate of interest applicable to the Notes.

The Issuer will pay principal and premium, if any, and interest in U.S. dollars. Principal of and premium, if any, and interest on the Notes will be payable, and the Notes may be exchanged or transferred, at the office or agency maintained by the Issuer for that purpose (which initially will be the Corporate Trust Office of the Trustee). Payment of principal of and premium, if any, and interest on a Global Security registered in the name of or held by DTC or its nominee will be made in immediately available funds to DTC, as the Depositary, or its nominee, as the case may be, as the registered holder of that Global Security. If any of the Notes are no longer represented by a Global Security, payment of interest on certificated Notes in definitive form may, at the Issuer’s option, be made by check mailed directly to Holders at their registered addresses appearing in the Security Register. If a payment date is a date other than a Business Day at a place of payment, payment may be made at that place on the next succeeding day that is a Business Day and no interest shall accrue for the intervening period.

The Issuer initially appoints U.S. Bank Trust Company, National Association, as Paying Agent and Security Registrar. The Issuer may change any Paying Agent upon written notice thereto. The Issuer, any Subsidiary or any Affiliate of any of them may act as Paying Agent or co-registrar.

The Issuer issued the Notes under an Indenture dated as of May 29, 2024 among the Issuer, the Guarantor and the Trustee, as supplemented by the first supplemental indenture thereto (such indenture, as so supplemented, the “Indenture”). Capitalized terms herein are used as defined in the Indenture unless otherwise indicated. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act. The Notes are subject to all such terms, and Holders are referred to the Indenture and the Trust Indenture Act (to the extent applicable) for a statement of all such terms. To the extent permitted by applicable law, in the event of any inconsistency between the terms of this Note and the terms of the Indenture, the terms of the Indenture shall control.

The Notes are senior unsecured obligations of the Issuer and the Guarantee is a senior unsecured obligation of the Guarantor. The Indenture does not limit the aggregate principal amount of the Notes that may be issued.

(a) Optional Redemption. Prior to March 1, 2034 (three months prior to their maturity date) (the “Par Call Date”), the Issuer may redeem the Notes at its option, in whole or in part, at any time and from time to time, at a Redemption Price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of: (1) (a) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the Redemption Date (assuming the Notes matured on the Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 20 basis points less, (b) interest accrued to the date of redemption, and (2) 100% of the principal amount of the Notes to be redeemed, plus, in either case, accrued and unpaid interest thereon to the Redemption Date.

On or after the Par Call Date, the Issuer may redeem the Notes, in whole or in part, at any time and from time to time, at a Redemption Price equal to 100% of the principal amount of the Notes being redeemed plus accrued and unpaid interest thereon to the Redemption Date.

“Treasury Rate” means, with respect to any Redemption Date, the yield determined by the Issuer in accordance with the following two paragraphs.

The Treasury Rate shall be determined by the Issuer after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third (3^rd) Business Day preceding the Redemption Date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as “Selected Interest Rates (Daily) - H.15” (or any successor designation or publication) (“H.15”) under the caption “U.S. government securities-Treasury constant maturities-Nominal” (or any successor caption or heading). In determining the Treasury Rate, the Issuer shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the Redemption Date to the Par Call Date (the “Remaining Life”); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the

Remaining Life, the two yields - one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life - and shall interpolate to the Par Call Date on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the Redemption Date.

If on the third Business Day preceding the Redemption Date H.15 or any successor designation or publication is no longer published, the Issuer shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second Business Day preceding such Redemption Date of the United States Treasury security maturing on, or with a maturity that is closest to, the Par Call Date, as applicable. If there is no United States Treasury security maturing on the Par Call Date but there are two or more United States Treasury securities with a maturity date equally distant from the Par Call Date, one with a maturity date preceding the Par Call Date and one with a maturity date following the Par Call Date, the Issuer shall select the United States Treasury security with a maturity date preceding the Par Call Date. If there are two or more United States Treasury securities maturing on the Par Call Date or two or more United States Treasury securities meeting the criteria of the preceding sentence, the Issuer shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

The Issuer’s actions and determinations in determining the Redemption Price shall be conclusive and binding for all purposes, absent manifest error.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary’s procedures) at least 10 days but not more than 60 days before the Redemption Date to each Holder of Notes to be redeemed.

Any notice of redemption may, at the Issuer’s discretion, be subject to one or more restrictions or conditions, including completion of an equity offering or other corporate transaction. If any such restriction or condition has not been satisfied, the Issuer will provide notice to the Trustee no later than the close of business the Business Day prior to the Redemption Date that such condition precedent has not been satisfied, the notice of redemption is rescinded or delayed and the redemption subject to the satisfaction of such restriction or condition shall not occur or shall be delayed.

Unless the Issuer defaults in payment of the Redemption Price, on and after the Redemption Date interest will cease to accrue on the Notes or portions thereof called for redemption.

(b) Tax Redemption. The Issuer is entitled to redeem the Notes, at its option, at any time in whole but not in part, at 100% of the principal amount thereof, plus accrued and unpaid interest and all Additional Amounts (if any), to the date of redemption (subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date), in the event the Guarantor has become or would become obligated to pay, on the next date on which any amount would be payable with respect to the Notes, any Additional Amounts with respect to the Notes as a result of:

which change or amendment is announced or becomes effective on or after the Issue Date and the Guarantor cannot avoid such obligation by taking reasonable measures available to it; provided, that for this purpose reasonable measures shall not include any change in the Guarantor’s jurisdiction of organization or location of its principal executive office. Notice of such redemption (which notice shall be irrevocable) shall be delivered electronically or mailed by first-class mail, postage prepaid, at least 10 but not more than 60 days before the redemption date to each holder of the Notes at such holder’s registered address or otherwise in accordance with the Applicable Procedures. Notwithstanding the foregoing, no such notice of redemption will be given (i) earlier than 90 days prior to the earliest date on which the Guarantor would be obliged to make such payment of Additional Amounts and (ii) unless at the time such notice is given, such obligation to pay such Additional Amounts remains in effect.

Before the Issuer mails or delivers notice of redemption of the Notes as described above in this Section 5(b), the Issuer will deliver to the Trustee an Officer’s Certificate stating that the Guarantor cannot avoid its obligation to pay Additional Amounts by taking reasonable measures available to it and that all conditions precedent to the redemption have been complied with. The Issuer will also deliver an Opinion of Counsel to the effect that the Guarantor would be obligated to pay Additional Amounts as a result of a change in tax laws or regulations or a new application or interpretation of such laws or regulations (as described in (1) or (2) in the first paragraph above in this Section 5(b)) and that all conditions precedent to the redemption have been complied with.

The foregoing will apply, mutatis mutandis, to any jurisdiction in which any successor to the Guarantor is incorporated or organized or any political subdivision or taxing authority or agency thereof or therein.

On the terms set forth in the Indenture, upon the occurrence of a Change of Control Repurchase Event, the Holders of the Notes will have the right to require that the Issuer purchase such Holder’s outstanding Notes, in whole or in part, at a purchase price of 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to, but excluding, the date of purchase.

The Notes are in fully registered form without interest coupons in denominations of $1,000 principal amount and integral multiples of $1,000 in excess thereof. A Holder may transfer or exchange Notes in accordance with the Indenture.

Subject to the provisions of the Indenture, a registered Holder may be treated as the owner of a Note for all purposes.

Subject to any applicable abandoned property law, any money deposited with the Trustee or any Paying Agent, or then held by the Issuer, in trust for the payment of the principal of or premium, if any, or interest on the Notes and remaining unclaimed for two years after such principal, premium or interest has become due and payable shall be paid to the Issuer on Issuer Request, or (if then held by the Issuer) shall be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Issuer (and, pursuant to the Guarantee thereof, the Guarantor) for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Issuer as trustee thereof, shall thereupon cease.

The Indenture contains provisions for defeasance at any time of (a) the entire indebtedness with respect to the Notes and (b) certain covenants, in each case upon compliance by the Issuer with certain conditions set forth in the Indenture.

Subject to certain exceptions, the Indenture or the Notes may be amended or supplemented with the consent of the Holders of at least a majority in aggregate principal amount of the Outstanding Notes, and any existing Default or Event of Default or compliance with any provision may be waived with the consent of the Holders of a majority in aggregate principal amount of the Outstanding Notes. Without notice to or the consent of any Holder, the parties thereto may amend or supplement the Indenture or the Notes to, among other things, cure any ambiguity or omission or to correct defects or inconsistencies and make any change that does not adversely affect the interests of any Holder of the Notes in any material respect, as evidenced by an Officer’s Certificate.

The Indenture contains certain covenants, including covenants with respect to the following matters: (i) Liens; (ii) Sale-Leaseback Transactions; (iii) mergers, consolidations and certain transfers of assets; (iv) purchase of the Notes upon a Change of Control Repurchase Event; and (v) Commission reports. Within 120 days (or the successor time period then in effect under the rules and regulations of the Exchange Act) after the end of each fiscal year, the Issuer must report to the Trustee on compliance with such limitations and certain other terms.

When a successor Person or other entity assumes all the obligations of its predecessor under the Notes and the Indenture in accordance with the terms of the Indenture, the predecessor Person will be released from those obligations.

If an Event of Default occurs and is continuing with respect to the Notes, the Trustee (which may be at the written direction of the requisite percentage of Holders) or the Holders of at least 25% in principal amount of the Outstanding Notes may declare all the Notes to be immediately due and payable, provided that if a bankruptcy or insolvency default with respect to the Issuer or the Guarantor occurs and is continuing, the Notes automatically become immediately due and payable. Subject to the provisions of the Indenture relating to the duties of the Trustee, in case an Event of Default occurs and is continuing with respect to the Notes, the Trustee shall be under no obligation to exercise any rights or powers under the Indenture at the request or direction of any of the Holders of the Notes unless such Holders have offered indemnity or security against any related costs, expenses and liabilities satisfactory to the Trustee. Subject to certain restrictions, the Holders of a majority in principal amount of the Outstanding Notes are given the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee. The Trustee, however, may refuse to follow any direction that conflicts with law or the Indenture or that the Trustee determines is unduly prejudicial to the rights of any other Holder of a Note or that would involve the Trustee in personal liability.

The Issuer’s obligations under the Notes are fully, irrevocably and unconditionally guaranteed by the Guarantor on a senior unsecured basis, to the extent set forth in the Indenture.

Subject to certain limitations in the Indenture, the Trustee, in its individual or any other capacity, may become the owner or pledgee of the Notes and may otherwise deal with the Issuer as if it were not the Trustee.

This Note shall not be valid until the Trustee manually signs the certificate of authentication on the other side of this Note.

Customary abbreviations may be used in the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian) and U/G/M/A (= Uniform Gifts to Minors Act).

Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Issuer has caused CUSIP numbers to be printed on the Notes and the Trustee may use CUSIP numbers in notices as a convenience to Holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice and reliance may be placed only on the other identification numbers placed thereon.

THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. THE PARTIES HERETO AGREE TO SUBMIT TO THE NON-EXCLUSIVE JURISDICTION OF THE FEDERAL COURTS OF THE UNITED STATES OF AMERICA LOCATED IN THE CITY OF NEW YORK OR THE COURTS OF THE STATE OF NEW YORK, IN EACH CASE LOCATED IN THE CITY OF NEW YORK, IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS NOTE OR THE INDENTURE.

The Issuer will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to the Issuer at 11819 N. Pennsylvania St., Carmel, IN 46032.

ASSIGNMENT FORM

To assign this Note, fill in the form below:

I or we assign and transfer this Note to

(Print or type assignee’s name, address and zip code)

(Insert assignee’s soc. sec. or tax I.D. No.)

and irrevocably appoint          agent to transfer this Note on the books of the Issuer. The agent may substitute another to act for him.

[TO BE ATTACHED TO GLOBAL NOTE]

SCHEDULE OF INCREASES OR DECREASES IN GLOBAL NOTE

The following increases or decreases in this Global Note have been made:

OPTION OF HOLDER TO ELECT PURCHASE

If you want to elect to have this Note purchased by the Issuer pursuant to Section 206 of the Supplemental Indenture, check the box: ☐

☐ If you want to elect to have only part of this Note purchased by the Issuer pursuant to Section 206 of the Supplemental Indenture, state the amount in principal amount: $

Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Note Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

Exhibit 5.1

May 29, 2024

Allegion Public Limited Company

Block D

Iveagh Court

Dublin 2, D02 VH94, Ireland

Allegion US Holding Company Inc.

11819 North Pennsylvania Street

Carmel, Indiana 46032

Ladies and Gentlemen:

We are issuing this opinion in our capacity as special legal counsel to Allegion plc, an Irish public limited company (the “Company”), and Allegion US Holding Company Inc., a Delaware corporation (the “Issuer”), in connection with the issuance and sale by the Issuer under the Securities Act of 1933, as amended (the “Act”), on a shelf Registration Statement on Form S-3ASR (No. 333-278323), and the documents incorporated by reference therein, filed with the Securities and Exchange Commission on March 28, 2024 (which became effective automatically upon filing, the “Registration Statement”) of $400,000,000 of 5.600% Senior Notes due 2034 (the “Notes”) to be issued pursuant to the Indenture (the “Base Indenture”), dated as of the date hereof, as supplemented by the First Supplemental Indenture, dated as of the date hereof (the “First Supplemental Indenture” and, together with the Base Indenture, the “Indenture”), by and among the Company, the Issuer, the guarantors named therein and U.S. Bank Trust Company, National Association, as trustee (in such capacity, the “Trustee”). The Indenture provides that the Notes are to be guaranteed (the “Guarantee”) by the Company. The Notes and the Guarantee are collectively referred to herein as the “Securities.”

In connection therewith, we have examined originals, or copies certified or otherwise identified to our satisfaction, of such documents, corporate records and other instruments as we have deemed necessary for the purpose of this opinion, including (i) the articles of incorporation and bylaws of the Issuer, (ii) minutes and records of the corporate proceedings of the Issuer with respect to the issuance and sale of the Notes, (iii) the Registration Statement, (iv) the Indenture and (v) specimen certificates representing the Notes.

For purposes of this opinion, we have assumed the authenticity of all documents submitted to us as originals, the conformity to the originals of all documents submitted to us as copies and the authenticity of the originals submitted to us as copies. We have also assumed the legal capacity of all natural persons, the genuineness of the signatures of persons signing all documents in connection with which this opinion is

Austin Bay Area Beijing Boston Brussels Dallas Hong Kong Houston London Los Angeles Miami Munich New York Paris Riyadh Salt Lake City Shanghai Washington, D.C.

Allegion Public Limited Company

Allegion US Holding Company Inc.

May 29, 2024

Page 2

rendered, the authority of such persons signing on behalf of the parties thereto, other than the Issuer, and the due authorization, execution and delivery of all documents by the parties thereto, other than the Issuer. As to any facts material to the opinions expressed herein which we have not independently established or verified, we have relied upon statements and representations of officers and other representatives of the Company, the Issuer and others.

We have assumed further that the Company is a corporation duly incorporated and validly existing as a public limited company under the laws of Ireland and has the requisite corporate capacity, power and authority to issue the Guarantee and to execute, deliver and perform its obligations under the Indenture and the Guarantee. We have also assumed the due authorization, execution and delivery of the Indenture by the Company and the Trustee and the due authorization of the Guarantee by the Company. We are aware of the delivery to you of the opinion of Arthur Cox LLP, legal counsel as to Irish law for the Company and the Issuer, dated as of the date hereof, which opinion is filed as Exhibit 5.2 to the Current Report on Form 8-K to be filed by the Company with the Securities and Exchange Commission (the “Commission”) on the date hereof and to be incorporated by reference into the Registration Statement.

We assume for purposes of this opinion that the applicable trustee is duly organized, validly existing and in good standing under the laws of its jurisdiction of organization; that such trustee is duly qualified to engage in the activities contemplated by the Indenture; that the Indenture has been duly authorized, executed and delivered by the applicable trustee and constitutes the legally valid and binding obligations of such trustee, enforceable against such trustee in accordance with its terms; that the applicable trustee is in compliance, generally and with respect to acting as an agent under the Indenture with all applicable laws and regulations; and that the applicable trustee has the requisite organizational and legal power and authority to perform its obligations under the Indenture.

Each opinion in this letter that any particular contract constitutes a valid and binding agreement or is enforceable in accordance with its terms (each, an “enforceability opinion”) is subject to: (i) the effect of bankruptcy, insolvency, fraudulent conveyance and other similar laws and judicially developed doctrines in this area such as substantive consolidation and equitable subordination; (ii) the effect of general principles of equity; and (iii) other commonly recognized statutory and judicial constraints on enforceability including statutes of limitations and may be subject to possible judicial or regulatory actions giving effect to governmental actions or foreign laws affecting creditors’ rights. “General principles of equity” include but are not limited to: (A) principles limiting the availability of specific performance and injunctive relief; (B) principles which limit the availability of a remedy under certain circumstances where another remedy has been elected; (C) principles requiring reasonableness, good faith and fair dealing in the performance and enforcement of an agreement by the party seeking enforcement; (D) principles which may permit a party to cure a material failure to perform its obligations; and (E) principles affording equitable defenses such as waiver, laches and estoppel. It is possible that terms in a particular contract covered by our enforceability opinion may not prove enforceable for reasons other than those explicitly cited in this opinion should an actual enforcement action be brought, but (subject to all the exceptions, qualifications, exclusions and other limitations contained in this opinion) such unenforceability would not in our opinion prevent the party entitled to enforce that contract from realizing the principal benefits purported to be provided to that party by the terms in that contract which are covered by our enforceability opinion. In addition, none of the opinions or other advice contained in this opinion covers or otherwise addresses any of the following types

Allegion Public Limited Company

Allegion US Holding Company Inc.

May 29, 2024

Page 3

of provisions (or the enforceability thereof) which may be contained in the Indenture, the Notes and the Guarantee: (i) provisions mandating contribution towards judgments or settlements among various parties; (ii) waivers of benefits and rights (including any usury or stay law) to the extent they cannot be waived under applicable law; (iii) provisions providing for liquidated damages, late charges and prepayment charges, in each case if deemed to constitute penalties; (iv) provisions which might require indemnification or contribution in violation of general principles of equity or public policy, including, without limitation, indemnification or contribution obligations which arise out of the failure to comply with applicable state or federal securities laws, rules or regulations; (v) requirements in the Indenture, the Notes and the Guarantee specifying that provisions thereof may only be waived in writing (these provisions may not be valid, binding or enforceable to the extent that an oral agreement or an implied agreement by trade practice or course of conduct has been created modifying any provision of such documents); (vi) any provision of the Indenture that purports to avoid the effect of fraudulent conveyance, fraudulent transfer or similar provision of applicable law by limiting the amount of any guarantor’s obligation; or (vii) the validity, legally binding effect or enforceability of any provision that permits holders to collect any portion of stated principal amount upon acceleration of the Securities to the extent determined to constitute unearned interest.

The enforceability opinion related to the Guarantee is further subject to the effect of rules of law that may render guarantees unenforceable under circumstances where, in the absence of an effective consent or waiver by the Company (as to which we express no opinion herein), actions, failures to act or waivers, amendments or replacement of the Indenture or the Securities so radically change the essential nature of the terms and conditions of the guaranteed obligations and the related transactions that, in effect, a new relationship has arisen between the Trustee and the Issuer or the Company, which is substantially and materially different from that presently contemplated by the Indenture and the Securities.

Based upon and subject to the assumptions, qualifications and limitations identified in this opinion, we are of the opinion that (i) the Notes constitute binding obligations of the Issuer enforceable against the Issuer in accordance with their terms and (ii) the Guarantee has been validly issued and constitutes a binding obligation of the Company enforceable against the Company in accordance with its terms.

Our advice on every legal issue addressed in this opinion is based exclusively on the internal law of New York and the General Corporation Law of the State of Delaware.

For purposes of rendering our opinions expressed above, we have assumed that (i) the Registration Statement remains effective during the offer and sale of the Notes, (ii) at the time of the issuance, sale and delivery of each Note (x) there will not have occurred any change in law affecting the validity, legally binding character or enforceability of such Note or the Guarantee and (y) the issuance, sale and delivery of such Note, the terms of such Note and compliance by the Issuer and the Company with the terms of such Note will not violate any applicable law, any agreement or instrument then binding upon the Issuer or the Company or any restriction imposed by any court or governmental body having jurisdiction over the Issuer or the Company.

We do not find it necessary for the purposes of this opinion, and accordingly we do not purport to cover herein, the application of the securities or “Blue Sky” laws of the various states to the issuance of the Securities.

Allegion Public Limited Company

Allegion US Holding Company Inc.

May 29, 2024

Page 4

This opinion is limited to the specific issues addressed herein, and no opinion may be inferred or implied beyond that expressly stated herein. This opinion speaks only as of the date hereof, and we assume no obligation to revise or supplement this opinion should the present laws of the State of New York or the General Corporation Law of the State of Delaware be changed by legislative action, judicial decision or otherwise after the date hereof.

This opinion is furnished to you in connection with the filing of the Company’s Current Report on Form 8-K, which is incorporated into the Registration Statement and is not to be used, circulated, quoted or otherwise relied upon for any other purposes.

We hereby consent to the filing of this opinion as Exhibit 5.1 to the Current Report on Form 8-K to be filed by the Company with the Commission on the date hereof and to be incorporated by reference into the Registration Statement. We also consent to the reference to our firm under the heading “Legal Matters” in the Registration Statement. In giving this consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Act or the rules and regulations of the Commission.

This opinion and consent may be incorporated by reference in a subsequent registration statement on Form S-3ASR filed pursuant to Rule 462(b) under the Act with the respect to the registration of additional securities for sale in the offering contemplated by the Registration Statement and shall cover such additional securities, if any, registered on such subsequent registration statement.

Exhibit 5.2

29 May 2024

PRIVATE AND CONFIDENTIAL

Allegion plc

Block D

Iveagh Court

Harcourt Road

Dublin 2

Dear Sirs,

We express no opinion, and make no representation or warranty, as to any matter of fact or in respect of any documents which may exist in relation to the Senior Notes or the Guarantee (as defined below), other than the Transaction Documents.

Subject to the assumptions and qualifications set out in this Opinion and to any matters not disclosed to us, we are of the opinion that:

For the purpose of giving this Opinion, we assume the following without any responsibility on our part if any assumption proves to have been untrue as we have not verified independently any assumption:

Prospectus Supplement and the Senior Notes

Authenticity and bona fides

Accuracy of searches and warranties

Solvency and Insolvency