April 26, 2017
VIA EDGAR
Mr. Bryan Hough
Division of Corporation Finance
U.S. Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
| RE: | United States Commodity Index Funds Trust |
| | Pre-Effective Amendment No. 1 to Registration Statement on Form S-1 |
| | Relating to the United States Agriculture Index Fund |
| | File No. 333- 216820 |
Dear Mr. Hough:
In accordance with Rule 461 of the General Rules and Regulations under the Securities Act of 1933, as amended, United States Commodity Index Fund Trust hereby respectfully requests that the above-captioned registration statement be ordered effective on April 28, 2017, at 3:00 p.m. ET, or as soon thereafter as practicable.
| United States Commodity Index Fund Trust |
| | |
| By: United States Commodity Funds LLC, |
| its Sponsor |
| | |
| By: | /s/ Carolyn M. Yu |
| | Carolyn M. Yu |
| | General Counsel |