(a) General license for payment terms. The following payment terms are authorized for sales pursuant to § 560.530(a):

(1) Payment of cash in advance;

(2) Sales on open account, provided that the account receivable may not be transferred by the person extending the credit;

(3) Financing by third-country financial institutions that are not United States persons, entities owned or controlled by United States persons and established or maintained outside the United States, Iranian financial institutions, or the Government of Iran. Such financing may be confirmed or advised by U.S. financial institutions and by financial institutions that are entities owned or controlled by United States persons and established or maintained outside the United States; or

(4) Letter of credit issued by an Iranian financial institution whose property and interests in property are blocked solely pursuant to this part. Such letter of credit must be initially advised, confirmed, or otherwise dealt in by a third-country financial institution that is not a United States person, an entity owned or controlled by a United States person and established or maintained outside the United States, an Iranian financial institution, or the Government of Iran before it is advised, confirmed, or dealt in by a U.S. financial institution or a financial institution that is an entity owned or controlled by a United States person and established or maintained outside the United States.

(b) Specific licenses for alternate payment terms. Specific licenses may be issued on a case-by-case basis for payment terms and trade financing not authorized by the general license in paragraph (a) of this section for sales pursuant to § 560.530(a).

(c)(1) No debits to blocked accounts. Nothing in this section authorizes payment terms or trade financing involving a debit to an account blocked pursuant to this part.

(2) No debits or credits to Iranian accounts on the books of U.S. depository institutions. Nothing in this section authorizes payment terms or trade financing involving debits or credits to Iranian accounts, as defined in § 560.320.

(d) Notwithstanding any other provision of this part, no commercial exportation to Iran may be made with United States Government assistance, including United States foreign assistance, United States export assistance, and any United States credit or guarantees absent a Presidential waiver.

(e) Nothing in this section authorizes any transaction by an entity owned or controlled by a United States person and established or maintained outside the United States otherwise prohibited by § 560.215 if the transaction would be prohibited by any other part of this chapter V if engaged in by a U.S. person or in the United States.