§ 6323.
([Pub. L. 89–554], Sept. 6, 1966, [80 Stat. 522]; [Pub. L. 90–588, § 2(a)], Oct. 17, 1968, [82 Stat. 1151]; [Pub. L. 90–623, § 1(17)], Oct. 22, 1968, [82 Stat. 1313]; [Pub. L. 91–375, § 6(c)(18)], Aug. 12, 1970, [84 Stat. 776]; [Pub. L. 96–54, § 2(a)(40)], Aug. 14, 1979, [93 Stat. 383]; [Pub. L. 96–70, title III, § 3302(e)(5)], Sept. 27, 1979, [93 Stat. 498]; [Pub. L. 96–431, § 1], Oct. 10, 1980, [94 Stat. 1850]; [Pub. L. 102–190, div. A, title V, § 528], Dec. 5, 1991, [105 Stat. 1364]; [Pub. L. 103–337, div. A, title XVI, § 1677(a)(2)], Oct. 5, 1994, [108 Stat. 3019]; [Pub. L. 104–106, div. A, title V, § 516(a)], title X, § 1039, Feb. 10, 1996, [110 Stat. 309], 432; [Pub. L. 106–65, div. A, title VI, § 672(b)], title XI, §§ 1105(a), 1106(a), Oct. 5, 1999, [113 Stat. 674], 777; [Pub. L. 106–554, § 1(a)(3) [title VI, § 642]], Dec. 21, 2000, [114 Stat. 2763], 2763A–169; [Pub. L. 107–107, div. A, title V, § 563], Dec. 28, 2001, [115 Stat. 1120]; [Pub. L. 108–136, div. A, title XI, § 1113(a)], Nov. 24, 2003, [117 Stat. 1635]; [Pub. L. 108–375, div. A, title V, § 523], Oct. 28, 2004, [118 Stat. 1888].)