There are hereby authorized to be appropriated such sums as may be necessary to carry out the purposes of this subchapter, not to exceed, however, $400,000 for the acquisition of lands and interests in lands and not to exceed $37,325,400 for development. The sums authorized in this section shall be available for acquisition and development undertaken subsequent to the approval of this subchapter.

(Pub. L. 92–593, § 10, Oct. 27, 1972, 86 Stat. 1313.)