OFAC designations---including designating non-US persons---are authorized through Executive Orders (EOs) issued by the President under statutory authority such as IEEPA or the Trading With the Enemy Act. Executive Orders define which categories of persons or entities may be designated and direct OFAC to act.

Sectoral Sanctions Identifications relate to sectoral sanctions, not full SDN designation. FATF recommendations are global AML standards, not OFAC authorities. UN resolutions may influence US sanctions but are not the legal authority directing SDN listings.

Executive Orders as legal authority for OFAC SDN designations.

Relationship between US statutory authority and OFAC implementation.