§ 354.4 Creation of Participant's Security Entitlement; security interests.
(a) A Participant's Security Entitlement is created when a Federal Reserve Bank indicates by book-entry that a Book-entry Sallie Mae Security has been credited to a Participant's Securities Account.
(b) A security interest in a Security Entitlement of a Participant in favor of the United States to secure deposits of public money, including without limitation deposits to the Treasury tax and loan accounts, or other security interest in favor of the United States that is required by Federal statute, regulation, or agreement, and that is marked on the books of a Federal Reserve Bank is thereby effected and perfected, and has priority over any other interest in the securities. Where a security interest in favor of the United States in a Security Entitlement of a Participant is marked on the books of a Federal Reserve Bank, such Federal Reserve Bank may rely, and is protected in relying, exclusively on the order of an authorized representative of the United States directing the transfer of the security. For purposes of this paragraph, an “authorized representative of the United States” is the official designated in the applicable regulations or agreement to which a Federal Reserve Bank is a party, governing the security interest.