DESCRIPTION OF CAPITAL STOCK

The following is a summary of all material characteristics of our capital stock as set forth in our Articles of Incorporation, as amended (the "Articles of Incorporation"), and our Bylaws (the "Bylaws"), which are filed as exhibits to the registration statement of which this prospectus is a part. The summary does not purport to be complete and is qualified in its entirety by reference to our Articles of Incorporation and our Bylaws, and to the provisions of Chapter 78 of the Nevada Revised Statutes (the "NRS"). We encourage you to review complete copies of our Articles of Incorporation and our Bylaws. You can obtain copies of these documents by following the directions outlined in "Where You Can Find Additional Information" and "Incorporation of Certain Information by Reference" elsewhere in this prospectus.

Common Stock

We have the authority to issue up to 350,000,000 shares of our Common Stock. As of April 7, 2016, there were 349,739,408 shares of our Common Stock issued and outstanding. We are obligated to issue up to an additional 386,971,104 shares of our Common Stock to contemplate the conversion or exercise of all of our currently outstanding Preferred Stock, warrants, options, and convertible debt; however, as of April 7, 2016 we had an insufficient number of authorized shares of our Common Stock to satisfy such obligations. Accordingly, such number of shares of our Common Stock for which we are obligated to issue in the future upon the conversion or exercise of all of our currently outstanding Preferred Stock, warrants, options, and convertible debt will be reserved at such time as when the number of our authorized shares of Common Stock increases. There is a limited public market for our Common Stock.

Voting Rights . The holders of our Common Stock are entitled to one vote per share on all matters requiring a vote of the stockholders, including the election of directors. Holders of our Common Stock do not have cumulative voting rights.

Liquidation . In the event of a liquidation, dissolution, or winding up of the Company, the holders of our Common Stock are entitled to share pro-rata all assets remaining after payment in full of all liabilities, subject to prior distribution rights of preferred stock, if any, then-outstanding.

Dividend Rights . Holders of our Common Stock are entitled to share ratably in dividends, if any, as may be declared from time to time by our Board of Directors (our "Board") in its discretion from funds legally available therefore, subject to preferences that may be applicable to our Preferred Stock, if any, then-outstanding. Dividends, if any, will be contingent upon our revenues and earnings, if any, capital requirements, and financial conditions. We intend to retain earnings, if any, for use in our business operations and accordingly, our Board does not anticipate declaring any dividends in the foreseeable future.

Other Rights and Restrictions . Our Common Stock has no preemptive or conversion rights or other subscription rights. There are no redemption or sinking fund provisions applicable to our Common Stock.

Stockholder Action; Special Meetings . Our Bylaws provide that stockholders' action can only be taken at an annual or special meeting of stockholders, or by written consent if such consent is signed by the holders of all of the shares entitled to vote with respect to the subject matter thereof. Our Bylaws provide that special meetings of the stockholders may be called at any time by our president, Board, or Chairman of the Board. In addition, a special meeting of the stockholders shall be called by our Board at the request of the holders of a majority of all outstanding shares entitled to vote on any issue at the meeting.

Board of Directors; Removal; Vacancies. Our Bylaws specify that the number of directors is to be determined by a majority of the total number of directors serving prior to any increase or decrease, provided there is at least one and no more than ten directors. Our Board is currently composed of eight directors. We do not have a classified Board. Pursuant to our Bylaws and the NRS, a director serves until the next annual meeting and until his or her successor has been elected and qualified, until there is a decrease in the number of directors, or until his or her earlier death, removal, or resignation. Our stockholders may remove one or more directors with or without cause by a vote of our stockholders.

Newly created directorships resulting from an increase in the number of directors and vacancies occurring on our Board for any reason except the removal of one or more director by our stockholders may be filled by a vote of a majority of the directors then in office, although less than a quorum exists. Vacancies occurring as a result of the removal of one or more directors by our stockholders shall be filled by a vote of our stockholders. A director that is appointed or elected to fill a vacancy shall hold office for the remaining term of his or her predecessor.

Amendment of Bylaws . Our Board may amend or repeal our Bylaws. Our stockholders may also amend or repeal our Bylaws by a vote of the holders of the shares entitled to vote in the election of any directors.

Transfer Agent and Registrar . The transfer agent for our Common Stock is West Coast Stock Transfer at 721 North Vulcan Avenue, Suite 205, Encinitas, California 92024. West Coast Stock Transfer's telephone number is (619) 664-4780.

Listing . Our Common Stock is quoted on the OTC Markets Group, Inc.'s OTCQX tier under the symbol "TRTC."

Preferred Stock – Generally

We have the authority to issue up to 25,000,000 shares of "blank check" Preferred stock, $0.001 par value, of which 100 shares have been designated as "Series A Preferred Stock," 24,968,800 shares have been designated as "Series B Preferred Stock," 21,600 shares have been designated as "Series Q Preferred Stock," and 8,300 shares have been designated as "Series Z Preferred Stock." As of April 7, 2016, 100 shares of Series A Preferred Stock, 24,818,700 shares of Series B Preferred Stock, 21,378 shares of Series Q Preferred Stock, and 8,166 shares of Series Z Preferred Stock are issued and outstanding. The rights, preferences, privileges, and restrictions of the Series A Preferred Stock, Series B Preferred Stock, Series Q Preferred Stock, and Series Z Preferred Stock are set forth below.

Our Board, without further approval of our stockholders, is authorized to fix the designations, powers, preferences, relative, participating optional or other special rights, and any qualifications, limitations, and restrictions applicable to each series of the preferred Stock, including:

You should refer to the prospectus supplement relating to the series of our Preferred Stock being offered for the specific terms of that series, including:

Upon issuance, the shares of our Preferred Stock will be fully paid and nonassessable, which means that its holders will have paid their purchase price in full and we may not require them to pay additional funds.

Any Preferred Stock terms selected by our Board could decrease the amount of earnings and assets available for distribution to holders of our Common Stock or adversely affect the rights and power, including voting rights, of the holders of our Common Stock, without any further vote or action by the stockholders. The rights of holders of our Common Stock will be subject to, and may be adversely affected by, the right of the holders of any Preferred Stock that may be issued by us in the future. The issuance of our Preferred Stock could also have the effect of delaying or preventing a change in control of us, make removal of management more difficult, discourage bids for our Common Stock at a premium, or otherwise adversely affect the market price of our Common Stock.

Outstanding Preferred Stock

Series A Preferred Stock . Each share of Series A Preferred Stock is convertible on a one-for-one basis into shares of our Common Stock and has all of the voting rights that the holders of our Common Stock have. So long as any shares of Series A Preferred Stock remain outstanding, our directors shall be elected as follows: (a) the holders of a majority of the shares of Series A Preferred Stock represented at a duly called special or annual meeting of such stockholders or by an action by written consent for that purpose shall be entitled to elect three directors (the "Series A Directors"), which holders may waive their rights to elect such three directors at any time and assign such right to the Board to elect such directors; and (b) the holders of a majority of the shares of our Common Stock represented at a duly called special or annual meeting of such stockholders or by an action by written consent for that purpose shall be entitled to elect two directors. The Series A Preferred Stockholders have not designated any Series A directors. Pursuant to the terms of our Bylaws, our Board has set the number of directors to eight. All eight directorships are filled.

So long as any shares of Series A Preferred Stock are outstanding, we shall not, without first obtaining the approval (by vote or written consent, as provided by law) of the holders of at least a majority of the then-outstanding shares of Series A Preferred Stock, voting as a separate class:

Series B Preferred Stock. Each share of our Series B Preferred Stock is convertible, at the option of the holder, on a 1-for-5.384325537 basis, into shares of our Common Stock (the "Conversion Rate"). The Conversion Rate is subject to adjustment as follows: (i) if we effect a forward stock split, the conversion rate (expressed as a quotient) shall be proportionately decreased so that the number of shares of our Common Stock issuable upon conversion of the Series B Preferred Stock increases in proportion to such increase in the aggregate number of shares of our Common Stock outstanding; (ii) if we effect a reverse split or combination, no adjustments shall be made; (iii) if we set a record date for the holders of our Common Stock entitled to receive a dividend or other distribution payable in shares of our Common Stock, then the conversion rate (expressed as a quotient) shall be decreased; (iv) if we set a record date for the holders of our Common Stock entitled to receive a dividend or other distribution payable in our securities, other than shares of our Common Stock, then the conversation rate shall be adjusted to ensure that the holders of the Series B Preferred Stock receive, in addition to the shares of our Common Stock issuable upon conversion of the Series B Preferred Stock, such number of securities that they would have received had their Series B Preferred Stock been converted into shares of our Common Stock on the record date; (v) if our Common Stock is changed to the same or different number of shares of any class or classes of stock, whether by reclassification, exchange, substitution, or otherwise, then, in each event, the conversion rate shall be adjusted so that each holder of Series B Preferred Stock has the right to convert such share of Series B Preferred Stock into the kind and amount of shares of stock and other securities receivable upon reclassification, exchange, substitution, or other change, by holders of the number of shares of our Common Stock into which such shares of Series B Preferred Stock might have been converted immediately prior to such reclassification, exchange, substitution, or other change; and (vi) if there is a capital reorganization of the Company, or a merger or consolidation of the Company with or into another entity where the holders of the outstanding voting securities prior to such merger or consolidation do not own more than 50% of the outstanding voting securities of the merged or consolidated entity, immediately after such merger or consolidation, or the sale of all or substantially all of our properties or assets to any other person, then as part of such change a revision to the conversion rate shall be made if necessary to ensure that the holders of the Series B Preferred Stock have the right to convert such shares of Series B Preferred Stock into the kind and amount of shares of stock and other securities or property of ours or any successor corporation resulting from such change. The Series B Preferred Stock also automatically converts into shares of our Common Stock immediately prior to a merger, sale of assets, share exchange, or other reorganization.

Each share of Series B Preferred Stock has voting rights equal to 100 shares of our Common Stock (subject to stock dividends, stock splits, and the like) and is entitled to a liquidation preference equal to $0.005384325537 (subject to appropriate adjustment in the event of any stock dividend, forward stock split, or other similar recapitalization). Such liquidation preference is in preference (but equal with the holders of our Series Z Preferred Stock) to the holders of our Common Stock, but subordinate in preference to any sum to which the holders of our Series A Preferred Stock are entitled. No dividends will be paid on the Series B Preferred Stock.

A holder of Series B Preferred Stock cannot convert less than fifty (50) shares of Series B Preferred Stock at any time, unless the holder holds less than fifty (50) shares of Series B Preferred Stock and converts all such shares held by it at that time. No fractional shares of our Common Stock are to be issued upon conversion of the Series B Preferred Stock.

Series Q Preferred Stock . Each share of Series Q Preferred Stock is convertible into 5,000 shares of our Common Stock immediately upon us filing with the Secretary of State of the State of Nevada an Amendment to our Articles of Incorporation to increase our authorized capital. Pursuant to the terms of the Series Q Certificate, the holders of the Series Q Preferred Stock are granted the following rights and preferences:

Series Z Preferred Stock . The Series Z Preferred Stock and is intended to mirror the rights of the holders of the Series B Preferred Stock. Each share of Series Z Preferred Stock is convertible into 1,857 shares of Series B Preferred Stock immediately upon us filing with the Secretary of State of the State of Nevada an Amendment to our Articles of Incorporation to increase our authorized capital. Each share of Series Z Preferred Stock has voting rights equal to 100 shares of our Common Stock (subject to stock dividends, stock splits, and the like) and is entitled to a liquidation preference equal to $10 (subject to appropriate adjustment in the event of any stock dividend, forward stock split, or other similar recapitalization). Such liquidation preference is in preference (but equal with the holders of our Series B Preferred Stock) to the holders of our Common Stock, but subordinate in preference to any sum to which the holders of our Series A Preferred Stock are entitled.

Anti-Takeover Effects of Certain Provisions of Nevada Law

Certain provisions of Nevada law and our Articles of Incorporation and Bylaws could make more difficult the acquisition of us by means of a tender offer or otherwise, and the removal of incumbent officers and directors. These provisions are expected to discourage certain types of coercive takeover practices and inadequate takeover bids and to encourage persons seeking to acquire control of us.

Selective Board . Our Board is comprised of eight members. So long as any shares of our Series A Preferred Stock remain outstanding, our directors shall be elected as follows: (a) the holders of a majority of the shares of Series A Preferred Stock represented at a duly called special or annual meeting of such stockholders or by an action by written consent for that purpose shall be entitled to elect three directors Series A Directors. The holders of the Series A Preferred Stock may waive their rights to elect such three directors at any time and assign such right to the Board to elect such directors; and (b) the holders of a majority of the shares of Common Stock represented at a duly called special or annual meeting of such stockholders or by an action by written consent for that purpose shall be entitled to elect two directors. The Series A Preferred Stockholders have not designated any Series A directors. Pursuant to the terms of our Bylaws, our Board has fixed the number of directors to eight. All eight directorships are filled.

This provision will make it more difficult to change our Board, and will promote the continuity of existing management. Our Series A Certificate of Designation also provides that any vote of our stockholders to alter, amend, or repeal this provision in any respect shall require the affirmative vote of the holders of at least a majority of the then-outstanding shares of the Series A Preferred Stock, voting as a separate class.

Voting Rights. Each share of our Series B Preferred Stock and Series Z Preferred Stock has voting rights equal to 100 shares of Common Stock (subject to stock dividends, stock splits, and the like). This provision may have anti-takeover effects and may inhibit a non-negotiated merger or other business combination.

Business Combinations. The "business combination" provisions of Sections 78.411 to 78.444, inclusive, of the NRS prohibit a Nevada corporation with at least 200 stockholders (at least 100 of whom are stockholders of record and residents of the State of Nevada) from engaging in various "combination" transactions with any interested stockholder for a period of three years after the date of the transaction in which the person became an interested stockholder, unless the transaction is approved by the board of directors prior to the date the interested stockholder obtained such status; or after the expiration of the three-year period, unless:

A "combination" is defined to include mergers or consolidations or any sale, lease exchange, mortgage, pledge, transfer, or other disposition, in one transaction or a series of transactions, with an "interested stockholder" having: (a) an aggregate market value equal to 5% or more of the aggregate market value of the assets of the corporation, (b) an aggregate market value equal to 5% or more of the aggregate market value of all outstanding shares of the corporation, or (c) 10% or more of the earning power or net income of the corporation.

In general, an "interested stockholder" is a person who, together with affiliates and associates, owns (or within three years, did own) 10% or more of a corporation's voting stock. The statute could prohibit or delay mergers or other takeover or change in control attempts and, accordingly, may discourage attempts to acquire us even though such a transaction may offer our stockholders the opportunity to sell their stock at a price above the prevailing market price.

DESCRIPTION OF DEBT SECURITIES

The following description, together with the additional information we include in any applicable prospectus supplements, summarizes the material terms and provisions of the debt securities that we may offer under this prospectus. While the terms we have summarized below will apply generally to any future debt securities we may offer pursuant to this prospectus, we will describe the particular terms of any debt securities that we may offer in more detail in the applicable prospectus supplement. If we so indicate in a prospectus supplement, the terms of any debt securities offered under such prospectus supplement may differ from the terms we describe below, and to the extent the terms set forth in a prospectus supplement differ from the terms described below, the terms set forth in the prospectus supplement shall control.

We may sell from time to time, in one or more offerings under this prospectus, debt securities, in one or more series. These debt securities that we may issue include senior debt securities, senior subordinated debt securities, subordinated debt securities, convertible debt securities, and exchangeable debt securities. We will issue any such senior debt securities under a senior indenture that we will enter into with a trustee to be named in the senior indenture. We will issue any such subordinated debt securities under a subordinated indenture, which we will enter into with a trustee to be named in the subordinated indenture. We use the term "indentures" to refer to either the senior indenture or the subordinated indenture, as applicable. The indentures will be qualified under the Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"), as in effect on the date of the indenture. We use the term "debenture trustee" to refer to either the trustee under the senior indenture or the trustee under the subordinated indenture, as applicable.

The following summary description, together with the additional information we may include in any applicable prospectus supplement does not purport to be complete and is subject to, and qualified in its entirety by reference to, the form of indenture filed as an exhibit to the registration statement of which the prospectus is a part, as it may be supplemented, amended, or modified from time to time, as well as the notes and supplemental agreement relating to each series of debt securities that will be incorporated by reference as exhibits to the registration statement that includes the prospectus or as exhibits to a Current Report on Form 8-K if we offer debt securities.

General

The indenture does not limit the amount of debt securities that may be issued thereunder, and each indenture provides that the specific terms of any series of debt securities shall be set forth in, or determined pursuant to, an authorizing resolution and/or a supplemental indenture, if any, relating to such series.

We may issue the debt securities issued under the indentures as "discount securities," which means they may be sold at a discount below their stated principal amount. These debt securities, as well as other debt securities that are not issued at a discount, may be issued with "original issue discount," or "OID," for U.S. federal income tax purposes because of interest payment and other characteristics or terms of the debt securities. Material U.S. federal income tax considerations applicable to debt securities issued with OID will be described in more detail in any applicable prospectus supplement.

We will describe in the applicable prospectus supplement the terms of the series of debt securities being offered, including:

We may issue debt securities that provide for an amount less than their stated principal amount to be due and payable upon declaration of acceleration of their maturity pursuant to the terms of the indenture. We will provide you with information on the federal income tax considerations and other special consideration applicable to any of these debt securities in the applicable prospectus supplement.

Conversion or Exchange Rights

We will set forth in the applicable prospectus supplement the terms on which a series of debt securities may be convertible into or exchangeable for our Common Stock or other securities. We will include provisions as to settlement upon conversion or exchange and whether conversion or exchange is mandatory, at the option of the holder, or at our option. We may include provisions pursuant to which the number of shares of our Common Stock or our other securities that the holders of the series of debt securities receive would be subject to adjustment.

Consolidation, Merger, or Sale; No Protection in Event of a Change of Control or Highly Leveraged Transaction

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the indenture will contain covenant that restricts our ability to merge or consolidate, or sell, convey, transfer or otherwise dispose of our assets as an entirety or substantially as an entirety, unless we are the surviving corporation or the successor to or acquirer of such assets (other than a subsidiary of ours) expressly assumes all of our obligations under the indenture or the debt securities, as appropriate. In addition, we cannot complete such a transaction unless immediately after completing the transaction, no event of default under the indenture, and no event that, after notice or lapse of time or both, would become an event of default under the indenture, has occurred and is continuing.

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the debt securities will not contain any provisions that may afford holders of the debt securities protection in the event we have a change of control or in the event of a highly leveraged transaction (whether or not such transaction results in a change of control), which could adversely affect holders of debt securities.

Events of Default Under the Indenture

Unless we provide otherwise in the prospectus supplement applicable to a particular series of debt securities, the following are events of default under the indentures with respect to any series of debt securities that we may issue:

No event of default with respect to a particular series of debt securities (except as to certain events of bankruptcy, insolvency, or reorganization) necessarily constitutes an event of default with respect to any other series of debt securities. The occurrence of an event of default may constitute an event of default under any bank credit agreements we may have in existence from time to time. In addition, the occurrence of certain events of default or acceleration under the indenture may constitute an event of default under certain of our other indebtedness outstanding from time to time.

If an event of default with respect to debt securities of any series at the time outstanding occurs and is continuing, then the trustee or the holders of at least 25% in principal amount of the outstanding debt securities of that series may, by a notice in writing to us (and to the debenture trustee if given by the holders), declare to be due and payable immediately the principal (or, if the debt securities of that series are discount securities, that portion of the principal amount as may be specified in the terms of that series) of and premium and accrued and unpaid interest, if any, on all debt securities of that series. Before a judgment or decree for payment of the money due has been obtained with respect to debt securities of any series, the holders of a majority in principal amount of the outstanding debt securities of that series (or, at a meeting of holders of such series at which a quorum is present, the holders of a majority in principal amount of the debt securities of such series represented at such meeting) may rescind and annul the acceleration if all events of default, other than the non-payment of accelerated principal, premium, if any, and interest, if any, with respect to debt securities of that series, have been cured or waived as provided in the applicable indenture (including payments or deposits in respect of principal, premium or interest that had become due other than as a result of such acceleration). We refer you to the prospectus supplement relating to any series of debt securities that are discount securities for the particular provisions relating to acceleration of a portion of the principal amount of such discount securities upon the occurrence of an event of default.

Subject to the terms of the indentures, if an event of default under an indenture shall occur and be continuing, the debenture trustee will be under no obligation to exercise any of its rights or powers under such indenture at the request or direction of any of the holders of the applicable series of debt securities, unless such holders have offered the debenture trustee reasonable indemnity. The holders of a majority in principal amount of the outstanding debt securities of any series will have the right to direct the time, method, and place of conducting any proceeding for any remedy available to the debenture trustee, or exercising any trust or power conferred on the debenture trustee, with respect to the debt securities of that series, provided, that:

A holder of the debt securities of any series will only have the right to institute a proceeding under the indentures or to appoint a receiver or trustee, or to seek other remedies if:

These limitations do not apply to a suit instituted by a holder of debt securities if we default in the payment of the principal, premium, if any, or interest on, the debt securities.

We will periodically file statements with the applicable debenture trustee regarding our compliance with specified covenants in the applicable indenture.

Modification of Indenture; Waiver

We and the debenture trustee may change the applicable indenture without the consent of any holders with respect to specific matters, including:

In addition, under the indentures, the rights of holders of a series of debt securities may be changed by us and the debenture trustee with the written consent of the holders of at least a majority in aggregate principal amount of the outstanding debt securities of each series (or, at a meeting of holders of such series at which a quorum is present, the holders of a majority in principal amount of the debt securities of such series represented at such meeting) that is affected. However, the debenture trustee and we may make the following changes only with consent of each holder of any outstanding debt securities affected:

Except for certain specified provisions, the holders of at least a majority in principal amount of the outstanding debt securities of any series (or, at a meeting of holders of such series at which a quorum is present, the holders of a majority in principal amount of the debt securities of such series represented at such meeting) may on behalf of the holders of all debt securities of that series waive our compliance with provisions of the indenture. The holders of a majority in principal amount of the outstanding debt securities of any series may, on behalf of the holders of all the debt securities of such series, waive any past default under the indenture with respect to that series and its consequences, except a default in the payment of the principal of, premium, or any interest on any debt security of that series or in respect of a covenant or provision, which cannot be modified or amended without the consent of the holder of each outstanding debt security of the series affected; provided , however , that the holders of a majority in principal amount of the outstanding debt securities of any series may rescind an acceleration and its consequences, including any related payment default that resulted from the acceleration.

Discharge, Defeasance and Covenant Defeasance

We can discharge or decrease our obligations under the indenture as stated below.

We may discharge obligations to holders of any series of debt securities that have not already been delivered to the trustee for cancellation and that have either become due and payable or are by their terms to become due and payable, or are scheduled for redemption, within one year. We may effect a discharge by irrevocably depositing with the trustee cash or government obligations, as trust funds, in an amount certified to be enough to pay when due, whether at maturity, upon redemption or otherwise, the principal of, and any premium and interest on, the debt securities and any mandatory sinking fund payments.

Unless otherwise provided in the applicable prospectus supplement, we may also discharge any and all of our obligations to holders of any series of debt securities at any time, which we refer to as defeasance. We may also be released from the obligations imposed by any covenants of any outstanding series of debt securities and provisions of the indenture, and we may omit to comply with those covenants without creating an event of default under the trust declaration, which we refer to as covenant defeasance. We may effect defeasance and covenant defeasance only if, among other things:

In the case of a defeasance by us, the opinion we deliver must be based on a ruling of the Internal Revenue Service issued, or a change in U.S. federal income tax law occurring, after the date of the indenture, since such a result would not occur under the U.S. federal income tax laws in effect on that date.

Although we may discharge or decrease our obligations under the indenture as described in the two preceding paragraphs, we may not avoid, among other things, our duty to register the transfer or exchange of any series of debt securities, to replace any temporary, mutilated, destroyed, lost, or stolen series of debt securities or to maintain an office or agency in respect of any series of debt securities.

Registered Global Securities and Book Entry System

The debt securities of a series may be issued in whole or in part in book-entry form and will be represented by one or more fully registered global securities. We will deposit any registered global securities with a depositary or with a nominee for a depositary identified in the applicable prospectus supplement and registered in the name of such depositary or nominee. In such case, we will issue one or more registered global securities denominated in an amount equal to the aggregate principal amount of all of the debt securities of the series to be issued and represented by such registered global security or securities. This means that we will not issue certificates to each holder.

Unless and until it is exchanged in whole or in part for debt securities in definitive registered form, a registered global security may not be transferred except as a whole:

The prospectus supplement relating to a series of debt securities will describe the specific terms of the depositary arrangement involving any portion of the series represented by a registered global security. We anticipate that the following provisions will apply to all depositary arrangements for debt securities:

The laws of some states may require that specified purchasers of securities take physical delivery of the securities in definitive form. These laws may limit the ability of those persons to own, transfer, or pledge beneficial interests in registered global securities.

So long as the depositary for a registered global security, or its nominee, is the registered owner of the registered global security, the depositary or such nominee, as the case may be, will be considered the sole owner or holder of the debt securities represented by the registered global security for all purposes under the indenture. Except as stated below, owners of beneficial interests in a registered global security:

Accordingly, each person owning a beneficial interest in a registered global security must rely on the procedures of the depositary for the registered global security and, if the person is not a participant, on the procedures of a participant through which the person owns its interest, to exercise any rights of a holder under the indenture.

We understand that under existing industry practices, if we request any action of holders or if an owner of a beneficial interest in a registered global security desires to give or take any action that a holder is entitled to give or take under the indenture, the depositary for the registered global security would authorize the participants holding the relevant beneficial interests to give or take the action, and the participants would authorize beneficial owners owning through the participants to give or take the action or would otherwise act upon the instructions of beneficial owners holding through them.

We will make payments of principal and premium, if any, and interest, if any, on debt securities represented by a registered global security registered in the name of a depositary or its nominee to the depositary or its nominee, as the case may be, as the registered owners of the registered global security. Neither we nor the trustee, or any other agent of ours or the trustee will be responsible or liable for any aspect of the records relating to, or payments made on account of, beneficial ownership interests in the registered global security or for maintaining, supervising, or reviewing any records relating to the beneficial ownership interests.

We expect that the depositary for any debt securities represented by a registered global security, upon receipt of any payments of principal and premium, if any, and interest, if any, in respect of the registered global security, will immediately credit participants' accounts with payments in amounts proportionate to their respective beneficial interests in the registered global security as shown on the records of the depositary. We also expect that standing customer instructions and customary practices will govern payments by participants to owners of beneficial interests in the registered global security held through the participants, as is now the case with the securities held for the accounts of customers in bearer form or registered in "street name." We also expect that any of these payments will be the responsibility of the participants.

If the depositary for any debt securities represented by a registered global security is at any time unwilling or unable to continue as depositary or stops being a clearing agency registered under the Exchange Act, we will appoint an eligible successor depositary. If we fail to appoint an eligible successor depositary within 90 days, we will issue the debt securities in definitive form in exchange for the registered global security. In addition, we may at any time and in our sole discretion decide not to have any of the debt securities of a series represented by one or more registered global securities. In that event, we will issue debt securities of the series in a definitive form in exchange for all of the registered global securities representing the debt securities. The trustee will register any debt securities issued in definitive form in exchange for a registered global security in the name or names as the depositary, based upon instructions from its participants, shall instruct the trustee.

Information Concerning the Debenture Trustee

The debenture trustee, other than during the occurrence and continuance of an event of default under the applicable indenture, undertakes to perform only those duties as are specifically set forth in the applicable indenture. Upon an event of default under an indenture, the debenture trustee under such indenture must use the same degree of care as a prudent person would exercise or use in the conduct of his or her own affairs. Subject to this provision, the debenture trustee is under no obligation to exercise any of the powers given it by the indentures at the request of any holder of debt securities unless it is offered reasonable security and indemnity against the costs, expenses, and liabilities that it might incur.

Payment and Paying Agents

Unless we other indicate in the applicable prospectus supplement, we will make payment of the interest on any debt securities on any interest payment date to the person in whose name the debt securities, or one or more predecessor securities, are registered at the close of business on the regular record date for the interest.

We will pay principal of and any premium and interest on the debt securities of a particular series at the office of the paying agents designated by us, except that unless we otherwise indicate in the applicable prospectus supplement, we will make interest payments by check which we will mail to the holder. Unless we otherwise indicate in a prospectus supplement, we will designate the corporate trust office of the debenture trustee as our sole paying agent for payments with respect to debt securities of each series. We will name in the applicable prospectus supplement any other paying agents that we initially designate for the debt securities of a particular series. We will maintain a paying agent in each place of payment for the debt securities of a particular series.

All money we pay to a paying agent or the debenture trustee for the payment of the principal of or any premium or interest on any debt securities which remains unclaimed at the end of two years after such principal, premium, or interest has become due and payable will be repaid to us, and the holder of the security thereafter may look only to us for payment thereof.

Governing Law

The indentures and the debt securities will be governed by and construed in accordance with the laws of the State of New York, except to the extent that the Trust Indenture Act is applicable.

Subordination of Subordinated Debt Securities

Our obligations pursuant to any subordinated debt securities will be unsecured and will be subordinate and junior in priority of payment to certain of our other indebtedness to the extent described in a prospectus supplement.

Outstanding Debt Securities

As of April 7, 2016, we had the following debt securities outstanding:

DESCRIPTION OF WARRANTS

The following description, together with the additional information we may include in any applicable prospectus supplements, summarizes the material terms and provisions of the warrants that we may offer under this prospectus, which may consist of warrants to purchase shares of our Common Stock, our Preferred Stock, or debt securities. While the terms we have summarized below will apply generally to any warrants that we may offer under this prospectus, we will describe the particular terms of any series of warrants that we may offer in more detail in the applicable prospectus supplement. The terms of any warrants offered under that prospectus supplement may differ from the terms described below. We urge you to read the applicable prospectus supplements related to the warrants that we sell under this prospectus, as well as the complete warrant agreements that contain the terms of the warrants.

We may issue warrants directly or under a warrant agreement to be entered into between us and a warrant agent. We will name any warrant agent in the applicable prospectus supplement. Any warrant agent will act solely as our agent in connection with the warrants of a particular series and will not assume any obligation or relationship of agency or trust for or with any holders or beneficial owners of warrants. The applicable prospectus supplement and the applicable warrant agreement will describe, where applicable, the following terms of and other information relating to the warrants:

Before exercising their warrants, holders of warrants will not have any of the rights of the holders of the securities purchasable upon such exercise, including the right to receive dividends, if any, or payments upon our liquidation, dissolution or winding up, or to exercise voting rights, if any.

Exercise of Warrants

Each warrant will entitle the holder to purchase the securities that we specify in the applicable prospectus supplement at the exercise price that we describe in the applicable prospectus supplement. Unless we otherwise specify in the applicable prospectus supplement, the holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.

Unless we otherwise specify in the applicable prospectus supplement, holders of the warrants may exercise the warrants by delivering the warrant certificate representing the warrants to be exercised together with specified information, and paying the required amount to the warrant agent in immediately available funds, as provided in the applicable prospectus supplement. We will set forth on the reverse side of the warrant certificate and in the applicable prospectus supplement the information that the holder of the warrant will be required to deliver to the warrant agent in connection with the exercise of the warrant.

Upon receipt of the required payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will issue and deliver the securities purchasable upon such exercise. If fewer than all of the warrants represented by the warrant certificates are exercised, then we will issue a new warrant certificate for the remaining amount of warrants.

Enforceability of Rights by Holders of Warrants

Each warrant agent will act solely as our agent under the applicable warrant agreement and will not assume any obligation or relationship of agency or trust with any holder of any warrant. A single bank or trust company may act as warrant agent for more than one issue of warrants. A warrant agent will have no duty or responsibility in case of any default by us under the applicable warrant agreement or warrant, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a warrant may, without the consent of the related warrant agent or the holder of any other warrant, enforce by appropriate legal action its right to exercise, and receive the securities purchasable upon exercise of, its warrants.

Outstanding Warrants

As of April 7, 2016, we had the following warrants outstanding:

DESCRIPTION OF RIGHTS

The following description, together with the additional information we may include in any applicable prospectus supplements, summarizes the material terms and provisions of the rights that we may offer under this prospectus. While the terms we have summarized below will apply generally to any rights that we may offer under this prospectus, we will describe the particular terms of any rights that we may offer in more detail in the applicable prospectus supplement. The terms of any rights offered under that prospectus supplement may differ from the terms described below. To the extent that any particular terms of the rights, rights agreement, or rights certificates described in a prospectus supplement differ from any of the terms described below, then the terms described below will be deemed to have been superseded by that prospectus supplement. We encourage you to read the applicable rights agreement and rights certificate for additional information before you decide whether to purchase any of our rights.

We may issue rights to our stockholders to purchase shares of our Common Stock, shares of our Preferred Stock, or the other securities described in this prospectus. We may offer rights separately or together with one or more additional rights, debt securities, shares of our Preferred Stock, shares of our Common Stock, warrants, or purchase contracts, or any combination of those securities in the form of units, as described in the applicable prospectus supplement. Each series of rights will be issued under a separate rights agreement to be entered into between us and a bank or trust company, as rights agent. The rights agent will act solely as our agent in connection with the certificates relating to the rights of the series of certificates and will not assume any obligation or relationship of agency or trust for or with any holders of rights certificates or beneficial owners of rights. The rights agent for any rights we offer will be set forth in the applicable prospectus supplement.

We will provide in a prospectus supplement the following terms of the rights being issued:

Each right will entitle the holder of rights to purchase for cash the principal amount of shares of our Common Stock, shares of our Preferred Stock, or other securities at the exercise price provided in the applicable prospectus supplement. Rights may be exercised at any time up to the close of business on the expiration date for the rights provided in the applicable prospectus supplement.

Holders may exercise rights as described in the applicable prospectus supplement. Upon receipt of payment and the rights certificate properly completed and duly executed at the corporate trust office of the rights agent or any other office indicated in the prospectus supplement, we will, as soon as practicable, forward the shares of our Common Stock, shares of our Preferred Stock, or other securities, as applicable, purchasable upon exercise of the rights. If less than all of the rights issued in any rights offering are exercised, we may offer any unsubscribed securities directly to persons other than stockholders, to or through agents, underwriters, or dealers, or through a combination of such methods, including pursuant to standby arrangements, as described in the applicable prospectus supplement.

DESCRIPTION OF PURCHASE CONTRACTS

The following description sets forth certain general terms and provisions of the purchase contracts to which any prospectus supplement may relate. The particular terms of the purchase contracts to which any prospectus supplement may relate and the extent, if any, to which the general provisions may apply to the purchase contracts so offered will be described in the applicable prospectus supplement. To the extent that any particular terms of the purchase contracts described in a prospectus supplement differ from any of the terms described below, then the terms described above will be deemed to have been superseded by that prospectus supplement. We encourage you to read the applicable purchase contract for additional information before you decide whether to purchase any of our purchase contracts.

We may issue purchase contracts, including contracts obligating holders to purchase from us, and for us to sell to holders, a specific or variable number of our debt securities, shares of our Common Stock, shares of our Preferred Stock, warrants, or rights, or any combination of the above, at a future date or dates. Alternatively, the purchase contracts may obligate us to purchase from holders, and obligate holders to sell to us, a specific or variable number of our debt securities, shares of our Common Stock, Preferred Stock, warrants, rights, or any combination of the above. The price of the securities subject to the purchase contracts may be fixed at the time the purchase contracts are issued or may be determined by reference to a specific formula described in the purchase contracts. We may issue purchase contracts separately or as a part of units each consisting of a purchase contract and one or more of our other securities described in this prospectus securing the holder's obligations under the purchase contract.

If we issue a purchase contract as part of a unit, the applicable prospectus supplement will state whether the purchase contract will be separable form the other securities in the unit before the purchase contract settlement date. The purchase contracts may require us to make periodic payments to holders or vice versa and the payments may be unsecured or pre-funded on some basis. The purchase contracts may require holders to secure the holder's obligations in a manner specified in the applicable prospectus supplement, and, in certain circumstances, we may deliver newly issued prepaid purchase contracts, often known as prepaid securities, upon release to a holder of any collateral securing such holder's obligations under the original purchase contract.

The applicable prospectus supplement will describe the terms of any purchase contracts in respect of which this prospectus is being delivered, including, to the extent applicable, the following:

DESCRIPTION OF UNITS

Below is a description of certain general terms and provisions of the units that we may offer. Particular terms of the units will be described in the applicable unit agreements and the applicable prospectus supplement for the units. We urge you to read the applicable prospectus supplements related to the units that we sell under this prospectus, as well as the complete unit agreements that contain the terms of the units.

We may issue units comprised of our Common Stock, our Preferred Stock, debt securities, warrants, rights, purchase contracts, or any combination of such securities under this prospectus. Units may be issued in one or more series, independently or together with shares of our Common Stock, our Preferred Stock, debt securities, warrants, rights or purchase contracts, and the units may be attached to or separate from such securities. We may issue units directly or under a unit agreement to be entered into between us and a unit agent. We will name any unit agent in the applicable prospectus supplement. Any unit agent will act solely as our agent in connection with the units of a particular series and will not assume any obligation or relationship of agency or trust for or with any holders or beneficial owners of units. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. We will describe in the applicable prospectus supplement the terms of the series of units, including the following: