DISPOSAL AND EXCHANGE.

SEC. 401. DISPOSAL AND EXCHANGE. (a) In General.—Section 4 of the Southern Nevada Public Land Management Act of 1998 (112 Stat. 2344) is amended— (1) in the first sentence of subsection (a), by striking “entitled Las Vegas Valley, Nevada, Land Disposal Map, dated April 10, 1997” and inserting “entitled Southern Nevada Public Land Management Act, dated October 1, 2002”; and (2) in subsection (e)(3)(A)— (A) in clause (iv)— (i) by inserting “or regional governmental entity” after “local government”; and (ii) by striking “and” at the end; (B) by redesignating clause (v) as clause (vi); and (C) by inserting after clause (iv) the following: “(v) up to 10 percent of amounts available, to be used for conservation initiatives on Federal land in Clark County, Nevada, administered by the Department of the Interior or the Department of Agriculture; and”. (b) Effective Date.—The amendments made by subsection (a) take effect on January 31, 2003. (c) Withdrawal.—Subject to valid existing rights, the land designated for disposal in this section is withdrawn from entry and appropriation under the public land laws, location and entry, under the mining laws, and from operation under the mineral leasing and geothermal leasing laws until such times as the Secretary terminates the withdrawal or the lands are patented.