113 STAT. 1744 PUBLIC LAW 106-157—DEC. 9, 1999 the conveyance under subsection (a) as the Secretary considers appropriate to protect the interests of the United States. (f) AUTHORIZATION OF AppROPRiATiONS.There is authorized to be appropriated such sums as are necessary to carry out this section. Approved December 9, 1999. LEGISLATIVE HISTORY—H.R. 2737: HOUSE REPORTS: No. 106-427 (Comm. on Resources). CONGRESSIONAL RECORD, Vol. 145 (1999): Nov. 1, considered and passed House. Nov. 19, considered and passed Senate.