As filed with the U.S. Securities and Exchange Commission on April 09, 2014
                            File Nos. 333-179904 and 811-22649                                                                                 

  UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
FORM N-1A
 
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
  
x
 
   
Post-Effective Amendment No. 73
  
x
 
   
and/or
  
   
   
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
  
x
 
   
Amendment No. 73
  
x
 
 
(Check appropriate box or boxes)
 
iShares U.S. ETF Trust
(Exact Name of Registrant as Specified in Charter)
 
c/o State Street Bank and Trust Company
200 Clarendon Street
Boston, MA 02116
(Address of Principal Executive Office)(Zip Code)
 
Registrant’s Telephone Number, including Area Code: (415) 670-2000
 
The Corporation Trust Company
1209 Orange Street
Wilmington, DE 19801
(Name and Address of Agent for Service)
 
With Copies to:
 
         
MARGERY K. NEALE, ESQ.
 
BENJAMIN J. HASKIN, ESQ.
 
EDWARD BAER, ESQ.
WILLKIE FARR &
GALLAGHER LLP
 
WILLKIE FARR &
GALLAGHER LLP
 
BLACKROCK FUND
ADVISORS
787 SEVENTH AVENUE
 
1875 K STREET, N.W.
 
400 HOWARD STREET
NEW YORK, NY 10019-6099
 
WASHINGTON, D.C. 20006-1238
 
SAN FRANCISCO, CA 94105
 
It is proposed that this filing will become effective (check appropriate box):
 
     
¨     Immediately upon filing pursuant to paragraph (b)
  
x    On May 9, 2014, pursuant to paragraph (b)
   
¨         60 days after filing pursuant to paragraph (a)(1)
  
¨         On (date) pursuant to paragraph (a)(1)
   
¨         75 days after filing pursuant to paragraph (a)(2)
  
¨         On (date) pursuant to paragraph (a)(2)
 
If appropriate, check the following box:
 
x
The post-effective amendment designates a new effective date for a previously filed post-effective amendment.

 
 
 
 


Explanatory Note


This Post-Effective Amendment No. 73 to the Registrant’s Registration Statement on Form N-1A is being filed pursuant to paragraph (b)(1)(iii) of Rule 485 of the Securities Act of 1933, as amended (the “1933 Act”), solely for the purpose of delaying, until May 9, 2014, the effectiveness of the registration statement for the iShares Commodities Strategy ETF, filed in Post-Effective Amendment No. 48 on January 24, 2014, pursuant to paragraph (a) of Rule 485 of the 1933 Act.


This Post-Effective Amendment No. 73 incorporates by reference the information contained in Parts A, B and C of Post-Effective Amendment No. 48.



 
 
 
 


SIGNATURES
 
Pursuant to the requirements of the Securities Act of 1933, as amended, and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all the requirements for the effectiveness of this Registration Statement pursuant to Rule 485(b)(1)(iii) of the Securities Act of 1933, as amended, and has duly caused this Post-Effective Amendment No. 73 to the Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of San Francisco and the State of California on the 9 th day of April, 2014.

iSHARES U.S. ETF TRUST 
   
By:
 
 
Manish Mehta*
 
President
   
 
Date: April 09, 2014
 
Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 73 to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated.
 
By:
 
 
Mark Wiedman*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
John E. Martinez*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
George G.C. Parker*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
Cecilia H. Herbert*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
Charles A. Hurty*
 
Trustee
   
 
Date: April 09, 2014

 
 
 
 


   
   
 
John E. Kerrigan*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
Robert H. Silver*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
Robert S. Kapito*
 
Trustee
   
 
Date: April 09, 2014
   
   
 
Madhav V. Rajan*
 
Trustee
   
 
Date: April 09, 2014
   
 
/s/ Jack Gee
 
Jack Gee
 
Treasurer
   
 
Date: April 09, 2014
   
* By:
/s/ Jack Gee
 
Jack Gee
 
Attorney-in-fact
   
 
Date: April 09, 2014
 
 
*
Powers of Attorney, each dated December 31, 2013, for Manish Mehta, Mark Wiedman, Charles A. Hurty, Cecilia H. Herbert, John E. Kerrigan, Robert H. Silver, George G.C. Parker, John E. Martinez, Madhav V. Rajan and Robert S. Kapito are incorporated herein by reference to Post-Effective Amendment No. 46, filed January 10, 2014.