31 CFR § 535.579 - Authorization of new transactions concerning certain Iranian property.
(a) Transactions involving property in which Iran or an Iranian entity has an interest are authorized where:
(1) The property comes within the jurisdiction of the United States or into the control or possession of any person subject to the jurisdiction of the United States after January 19, 1981, or
(2) The interest in the property of Iran or an Iranian entity (e.g. exports consigned to Iran or an Iranian entity) arises after January 19, 1981.
(b) Transactions involving standby letters of credit, performance or payment bonds and similar obligations, entered into prior to January 20, 1981, described in § 535.568 remain subject to the prohibitions and procedures contained in §§ 535.201 and 535.568.
(c) Property not blocked under § 535.201 as of January 19, 1981, in which the Government of Iran or an Iranian entity has an interest, which after that date is or becomes subject to the jurisdiction of the United States or comes within the control or possession of a person subject to the jurisdiction of the United States for the express purpose of settling claims against Iran or Iranian entities, is excluded from any authorization in this part for any attachment, injunction or other order of similar or analogous effect and any such attachment, injunction or order is prohibited by §§ 535.201 and 535.203.