Prior Provisions
A prior subchapter B of chapter 31 was redesignated subchapter C by [Pub. L. 101–508, title XI, § 11221(a)], Nov. 5, 1990, [104 Stat. 1388–438].
Amendments
2012—[Pub. L. 112–95, title XI, § 1103(a)(4)], Feb. 14, 2012, [126 Stat. 151], added item 4043.
1990—[Pub. L. 101–508, title XI, § 11221(a)], Nov. 5, 1990, [104 Stat. 1388–438], redesignated this subchapter, formerly subchapter A, as subchapter B. Former subchapter B redesignated C.
1978—[Pub. L. 95–502, title II, § 202(c)], Oct. 21, 1978, [92 Stat. 1697], added item 4042.
1976—[Pub. L. 94–455, title XIX, § 1904(a)(1)(A)], Oct. 4, 1976, [90 Stat. 1810], added item 4041.
