Section,
Pub. L. 92–513, title III, § 321, formerly § 304, Oct. 20, 1972,
86 Stat. 961; renumbered § 321,
Pub. L. 93–492, title III, § 301(a)(3), Oct. 27, 1974,
88 Stat. 1485; amended
Pub. L. 94–364, title III, § 303, July 14, 1976,
90 Stat. 982, authorized appropriations to carry out this subchapter for fiscal years 1976, 1977, and 1978, and provided that funds were to remain available until expended.