Any Federal Reserve bank may at any time reduce its liability for outstanding Federal Reserve notes by depositing with the Federal Reserve agent its Federal Reserve notes, gold certificates, Special Drawing Right certificates, or lawful money of the United States. Federal Reserve notes so deposited shall not be reissued, except upon compliance with the conditions of an original issue. The liability of a Federal Reserve bank with respect to its outstanding Federal Reserve notes shall be reduced by an amount paid by such bank to the Secretary of the Treasury under section 4 of the Old Series Currency Adjustment Act.