# 551.206 Exempt transactions.(a) *United Nations Participation Act.* The exemption described in this section does not apply to transactions involving property or interests in property of persons whose property and interests in property are blocked pursuant to the authority of the United Nations Participation Act, as amended (22 U.S.C. 287c(b)) (UNPA).Persons whose property and interests in property are blocked pursuant to the authority of the UNPA include those listed on *both* OFAC's Specially Designated Nationals and Blocked Persons List (SDN List) and the Consolidated United Nations Security Council Sanctions List (UN List) (see *https://www.un.org*), as well as persons listed on the SDN List for being owned or controlled by, or acting for or on behalf of, persons listed on *both* the SDN List and the UN List.(b) *Personal communications.* Th prohibitions contained in this part do not apply to any postal, telegraphic, telephonic, or other personal communication that does not involve the transfer of anything of value.