There may be appropriated to the Secretary to carry out the purposes of this chapter such sums as may be authorized in annual authorization Acts.

(Pub. L. 93–577, § 16, Dec. 31, 1974, 88 Stat. 1894; Pub. L. 109–58, title X, § 1009(b)(10), Aug. 8, 2005, 119 Stat. 935.)