Section, Pub. L. 99–198, title XII, §1230, as added Pub. L. 101–624, title XIV, §1431(2), Nov. 28, 1990, 104 Stat. 3576; amended Pub. L. 103–66, title I, §1402(a), Aug. 10, 1993, 107 Stat. 332; Pub. L. 104–127, title III, §331, Apr. 4, 1996, 110 Stat. 992; Pub. L. 107–171, title II, §2006(b), May 13, 2002, 116 Stat. 237, related to comprehensive conservation enhancement program.