Section, added
Pub. L. 91–172, title VIII, § 804(a), Dec. 30, 1969,
83 Stat. 685; amended
Pub. L. 93–406, title II, § 2005(c)(14), Sept. 2, 1974,
88 Stat. 992;
Pub. L. 94–455, title III, § 302(a), Oct. 4, 1976,
90 Stat. 1554;
Pub. L. 95–600, title IV, §§ 441(a),
442
(a), title VII, § 701(x)(1), (2), Nov. 6, 1978,
92 Stat. 2878, 2920;
Pub. L. 95–600, title IV, § 441(a), as amended
Pub. L. 96–222, title I, § 104(a)(5)(B), Apr. 1, 1980,
94 Stat. 218, provided for a 50-percent maximum rate on personal service income.