400 Howard Street

San Francisco, CA 94105

Tel +1 415 670 4663

Fax +1 415 618 5675

Jack.Gee@blackrock.com

March 1, 2016

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 for

the following Trust funds, each dated March 1, 2016, do not differ from those contained in Post-

Effective Amendment No. 191 to the Trust’s Registration Statement on Form N-1A, filed

electronically on February 25, 2016:

iShares Commodities Select Strategy ETF

iShares Interest Rate Hedged 10+ Year Credit Bond ETF

iShares Interest Rate Hedged Corporate Bond ETF

iShares Interest Rate Hedged Emerging Markets Bond ETF

iShares Interest Rate Hedged High Yield Bond ETF

iShares Short Maturity Bond ETF

iShares Short Maturity Municipal Bond ETF

iShares U.S. Fixed Income Balanced Risk ETF

iShares Ultra Short-Term Bond ETF

If you have any questions, please do not hesitate to contact Benjamin J. Haskin of Willkie Farr &

Gallagher LLP at (202) 303-1124.

Yours truly,

/s/ Jack Gee

Jack Gee

Treasurer and Chief Finanical Officer

cc:  Benjamin J. Haskin, Esq.