31 CFR 595.406 - Provision of services.
(a) Except as provided in § 595.206, the prohibitions contained in §§ 595.201 and 595.204 apply to services performed by U.S. persons, wherever located:
(1) On behalf of, or for the benefit of, a specially designated terrorist; or
(b) Example: U.S. persons may not, except as authorized by the Office of Foreign Assets Control by or pursuant to this part, provide legal, accounting, public relations, educational, or other services to a specially designated terrorist. See § 595.506.