7 U.S.C. § 5695
Authorization of appropriations
There are hereby authorized to be appropriated for the Service such sums as may be necessary to carry out the provisions of this subchapter.
( Pub. L. 95–501, title V, § 505 , formerly § 506, as added Pub. L. 101–624, title XV, § 1531 , Nov. 28, 1990 , 104 Stat. 3687 ; renumbered § 505, Pub. L. 102–237, title III, § 314 , Dec. 13, 1991 , 105 Stat. 1856 .)