The Commodity Futures Trading Commission (CFTC) recently proposed to amend its rules to resolve ambiguity regarding whether certain commodity pool operators (CPOs) and commodity trading advisors (CTAs) located outside the United States are required to register. In a guest article, Nathan A. Howell and Joseph E. Schwartz, partner and associate, respectively, at Sidley Austin, review the recent rule proposal by the CFTC, along with the legislative history preceding it, and examine how the proposal would clarify the regulation requirements of foreign CPOs and CTAs. For additional insight from Sidley Austin partners, see “E.U. Market Abuse Scenarios Hedge Fund Managers Must Consider” (Dec. 17, 2015); “Recommended Actions for Hedge Fund Managers in Light of SEC Enforcement Trends” (Oct. 22, 2015); and coverage of Sidley Austin’s private funds event in New York City: Part One (Sep. 25, 2014); and Part Two (Oct. 2, 2014). For discussion of other CFTC regulatory matters, see “Hedge Fund Managers Face Imminent NFA Cybersecurity Deadline” (Feb. 25, 2016); and “CFTC Allows Hedge Fund Managers to Advertise” (Sep. 18, 2014).