31 CFR § 560.550 - Certain noncommercial, personal remittances to or from Iran authorized.
(a) In cases in which the transfer involves a noncommercial, personal remittance, the transfer of funds to or from Iran or for or on behalf of an individual ordinarily resident in Iran, other than an individual whose property and interests in property are blocked pursuant to § 560.211, is authorized, provided that the transfer is processed by a United States depository institution or a United States registered broker or dealer in securities and not by any other U.S. person; does not involve debiting or crediting an Iranian account; and is not by, to, or through the Government of Iran, as defined in § 560.304.
(b) Noncommercial, personal remittances do not include charitable donations to or for the benefit of an entity or funds transfers for use in supporting or operating a business, including a family-owned enterprise.
(c) The transferring institutions identified in paragraph (a) of this section may rely on the originator of a funds transfer with regard to compliance with paragraph (a) of this section, provided that the transferring institution does not know or have reason to know that the funds transfer is not in compliance with paragraph (a) of this section.
(d) An individual who is a U.S. person is authorized to carry funds as a noncommercial, personal remittance, as described in paragraphs (a) and (b) of this section, to an individual in Iran or ordinarily resident in Iran, other than an individual whose property and interests in property are blocked pursuant to § 560.211, provided that the individual who is a U.S. person is carrying the funds on his or her behalf, but not on behalf of another person.