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Tel +1 415 670 7897
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edward.baer@blackrock.com
February 25, 2014



Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549

RE:
iShares U.S. ETF Trust (the “Trust”)
            Securities Act File No. 333-179904;
            Investment Company Act File No. 811-22649


Ladies and Gentlemen:

Pursuant to Rule 497(j) of the Securities Act of 1933, as amended, and on behalf of the Trust, please accept this letter as certification that the Prospectuses and Statements of Additional Information, each dated February 24, 2014, do not differ from those contained in the following Post-Effective Amendments to the Trust’s Registration Statement on Form N-1A, filed electronically on February 24, 2014.

Series
Post-Effective Amendment No.
iShares Enhanced International Large-Cap ETF
63
iShares Enhanced International Small-Cap ETF
64


If you have any questions, please do not hesitate to contact Benjamin J. Haskin of Willkie Farr & Gallagher LLP at (202) 303-1124 or me at (415) 670-7897.
 
Yours truly,
 
 

 
/s/ Edward Baer
Edward Baer, Esq.
 

 
 
cc:  Benjamin J. Haskin, Esq.