§ 536.201 Prohibited transactions.
(a) All property and interests in property that are in the United States, that come within the United States, or that are or come within the possession or control of any U.S. person, of a specially designated narcotics trafficker are blocked and may not be transferred, paid, exported, withdrawn, or otherwise dealt in.
(b) The prohibitions in paragraph (a) of this section include prohibitions on the following transactions:
(1) The making of any contribution or provision of funds, goods, or services by, to, or for the benefit of any person whose property and interests in property are blocked pursuant to paragraph (a) of this section, other than donations of articles, such as food, clothing, and medicine, intended to be used to relieve human suffering; and