(a) All transactions by U.S. persons, wherever located, and transactions within the United States involving derivative products whose value is linked to an underlying asset that constitutes prohibited debt issued by a person subject to § 589.202, § 589.203, or § 589.204, or prohibited equity issued by a person subject to § 589.202, are authorized.

(b) This section does not authorize the holding, purchasing, or selling of underlying assets otherwise prohibited by § 589.202, § 589.203, or § 589.204 by U.S. persons, wherever are located, or within the United States.