On November 4, 2022, it will become mandatory to comply with the SEC’s new marketing rule (Marketing Rule) under Rule 206(4)‑1 of the Investment Advisers Act of 1940. Most SEC-registered investment advisers that are subject to the rule are well advanced in implementing necessary internal changes, but the process is probably more challenging for advisers forced to also comply with other jurisdictions’ requirements. As the largest concentration of SEC-registered fund managers outside the U.S. is in the U.K and regulated by the Financial Conduct Authority, advisers in that position must create compliance programs that meets those dual regulatory responsibilities. To address some of the issues relevant to managers that are subject to both the U.S. and U.K. rules on marketing investment products, the Alternative Investment Management Association hosted a webinar that was moderated by senior adviser Suzan Rose and featured K&L Gates partners Michael W. McGrath and Michelle Moran. This first article in a two-part series reviews the key differences between the U.S. and U.K. marketing regimes, as well as measures advisers can take to reconcile those regimes. The second article will analyze similarities and differences in the treatment of non-standard investment performance track records (e.g., hypothetical performance, predecessor performance, etc.) across the jurisdictions. For more on preparing for the Marketing Rule, see “A Checklist for Fund Managers to Ensure Their Advertising Materials Comply With the New Marketing Rule” (May 10, 2022); and “Eleven ‘Top of Mind’ Questions and Misconceptions Surrounding the New Marketing Rule” (Mar. 22, 2022).