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Trace W. Rakestraw
State Street
1 Iron Street CCB 1102
Boston, MA 02210
Tel +1 617 662 1501
Fax +1 617 369 0205
TWRakestraw@StateStreet.com
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December 1, 2015
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
RE:
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iShares U.S. ETF Trust (the “Trust”)
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Securities Act File No. 333-179904;
Investment Company Act File No. 811-22649
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 for iShares Enhanced U.S. Large-Cap ETF and iShares Enhanced U.S. Small-Cap ETF, each dated December 1, 2015, do not differ from those contained in Post-Effective Amendment No. 178 to the Trust’s Registration Statement on Form N-1A, filed electronically on November 23, 2015.
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 (617) 662-1501.
Yours truly,
/s/ Trace W. Rakestraw
Trace W. Rakestraw
Assistant Secretary
cc: Benjamin J. Haskin, Esq.