Pub. L. 102-166, tit. III, sec. 323
PAYMENTS BY THE PRESIDENT OR A MEMBER OF THE SENATE.
SEC. 323. PAYMENTS BY THE PRESIDENT OR A MEMBER OF THE SENATE. The President or a Member of the Senate shall reimburse the appropriate Federal account for any payment made on his or her behalf out of such account for a violation committed under the provisions of this title by the President or Member of the Senate not later than 60 days after the payment is made.