((a)) ** Authorization of appropriations** There are authorized to be appropriated such funds as may be necessary to carry out the purposes of this chapter, to remain available until expended.
((b)) ** Set-aside for fencing** Of the amounts made available under subsection (a) for a fiscal year, 25 percent shall be set aside until April 1 of that fiscal year for the repair or replacement of fencing.
((c)) ** Use of Commodity Credit Corporation** In implementing this chapter, the Secretary may use the facilities, services, and authorities of the Commodity Credit Corporation.
((d)) ** Limitation** The Commodity Credit Corporation shall not make any expenditures to carry out the provisions of this chapter unless funds specifically appropriated for such purpose have been transferred to it.