Except as otherwise authorized, U.S. persons, wherever located, are prohibited from approving, financing, facilitating, or guaranteeing a transaction by a foreign person where the transaction by that foreign person would be prohibited by § 589.206 , § 589.207 , or § 589.208 of this part if performed by a U.S. person or within the United States.
31 C.F.R. §589.215