The Office of the Comptroller of the Currency (OCC) has finalized federal stablecoin regulations implementing the GENIUS Act, establishing binding requirements for reserve backing, redemptions, custody and risk management that will take effect on January 18, 2027. The October 21 decision establishes supervisory standards for eligible U.S. payment stablecoin issuers, including national bank subsidiaries, federally approved nonbank issuers and qualifying foreign companies operating in the American market.