After June 30, 1966, no department or agency listed in section 1717(c)(2) of this title may sell any obligation held by it except as provided in section 1717(c) of this title, or as approved by the Secretary of the Treasury, except that this prohibition shall not apply to the Government National Mortgage Association.
(Pub. L. 89–429, § 6(b), May 24, 1966, 80 Stat. 167; Pub. L. 90–448, title VIII, § 807(g), Aug. 1, 1968, 82 Stat. 545.)