Sections 1.31-1.39 of the Commodities Exchange Act impose recordkeeping requirements on the trading of commodity futures in the United States.
Link to Regulation: https://www.ecfr.gov/cgi-bin/text-idx?SID=bd2d99439178a82be0d5e8f9f1083035&mc=true&node=sg17.1.1_130.sg4&rgn=div7
Helpful Link: http://www.cftc.gov/LawRegulation/CommodityExchangeAct/index.htm