Pub. L. 110–234 and Pub. L. 110–246 made identical amendments to this section. The amendments by Pub. L. 110–234 were repealed by section 4(a) of Pub. L. 110–246.

2018—Subsec. (b)(2). Pub. L. 115–334 substituted “2023” for “2018”.

2014—Subsec. (b). Pub. L. 113–79 struck out “such funds as may be necessary” after “appropriated”, substituted “subchapter—” for “subchapter for each of the fiscal years 1991 through 2012.”, and added pars. (1) and (2).

2008—Subsec. (b). Pub. L. 110–246, § 7201, substituted “2012” for “2007”.

2002—Subsec. (b). Pub. L. 107–171 substituted “2007” for “2002”.

1998—Subsec. (b). Pub. L. 105–185 substituted “2002” for “1997”.

1996—Subsec. (b). Pub. L. 104–127 substituted “1997” for “1995”.

Amendment of this section and repeal of Pub. L. 110–234 by Pub. L. 110–246 effective May 22, 2008, the date of enactment of Pub. L. 110–234, see section 4 of Pub. L. 110–246, set out as an Effective Date note under section 8701 of this title.