Amendments
1989—[Pub. L. 101–234, title I, § 102(a)], Dec. 13, 1989, [103 Stat. 1980], repealed [Pub. L. 100–360, § 111], and provided that the provisions of law amended by such section are restored or revived as if such section had not been enacted, see 1988 Amendment note below.
1988—[Pub. L. 100–360, title I, § 111(c)], July 1, 1988, [102 Stat. 697], added part VIII “Supplemental medicare premium”.
1986—[Pub. L. 99–499, title V, § 516(b)(5)], Oct. 17, 1986, [100 Stat. 1771], added part VII.
1976—[Pub. L. 94–455, title XIX, § 1901(b)(2)], Oct. 4, 1976, [90 Stat. 1792], struck out part V “Tax surcharge”.
1969—[Pub. L. 91–172, title III, § 301(b)(1)], Dec. 30, 1969, [83 Stat. 585], added part VI.
1968—[Pub. L. 90–364, title I, § 102(d)], June 28, 1968, [82 Stat. 259], added part V.
