1990—Pub. L. 101–510 substituted “Authority for exemptions in appropriation laws” for “Authorization to exempt” in section catchline and amended text generally. Prior to amendment, text read as follows: “A provision of an appropriation law may exempt an appropriation from this subchapter and fix the period for which the appropriation remains available for expenditure.”

Amendment by Pub. L. 101–510 applicable to any appropriation account the obligated balance of which, on Nov. 5, 1990, has not been transferred under section 1552(a)(1) of this title, as in effect Nov. 4, 1990, with transitional provisions, see section 1405(b) of Pub. L. 101–510, set out as a note under section 1551 of this title.