General License B under E.O. 13599 authorizes U.S. depository institutions and U.S. registered brokers or dealers in securities to process noncommercial, personal remittances to or from Iran provided that the payment is not made by, to, or through a financial institution designated by OFAC under the WMDPSR, or the GTSR, or a person whose property and interests in property are blocked pursuant to any other part of 31 C.F.R. chapter V, or any Executive order, except an Iranian financial institution whose property and interests in property are blocked solely pursuant to E.O. 13599. Exempt or authorized transactions to or from Iran may also be processed subject to the above conditions.
Such transactions must be processed through a third country, as U.S. banks are prohibited from operating correspondent accounts for Iranian banks. The transactions may involve the use of blocked Iranian financial institutions as long as the Iranian financial institution is blocked solely pursuant to E.O. 13599 (and not pursuant to any other Executive order or part of 31 C.F.R. chapter V) and there is a third-country, non-U.S. financial institution as an intermediary between the U.S. financial institution and the Iranian financial institution.