There are authorized to be appropriated such sums as may be necessary, but not in excess of $5,473,000, to carry out the purposes of this subchapter.

(Pub. L. 89–671, § 3, Oct. 15, 1966, 80 Stat. 951; Pub. L. 92–272, title II, § 201(4), Apr. 11, 1972, 86 Stat. 120.)