§ 515.302 National.

(a) The term national when used with respect to a country shall include:

(1) A subject or citizen of that country or any person who has been domiciled in or a permanent resident of that country at any time on or since the “effective date,” except persons who were permanent residents of or domiciled in that country in the service of the U.S. Government and persons whose transactions in that country were authorized by the Office of Foreign Assets Control.