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.
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.