Effective October 1, 1979 , and to such extent and in such amounts as are provided in advance in appropriate [1] Acts, in order to provide measures determined by the Secretary of the Interior to be appropriated to mitigate loss of fish and wildlife habitat associated with other measures taken under this subchapter: (a) Appropriation of funds; acquisition and disposal of lands; facilities undertakings; funds restriction for non-Federal facilities The Secretary is authorized to— (1) acquire lands by purchase, eminent domain, or exchange; (2) dispose of land, facilities, and equipment; (3) construct, operate, maintain, and make replacements of facilities: Provided, however, That no funds will be provided for operation, maintenance, or replacement of non-Federal facilities. (b) Nonreimbursable costs All costs authorized by this section are nonreimbursable. ( Pub. L. 93–320, title I, § 110 , as added Pub. L. 96–336, § 6 , Sept. 4, 1980 , 94 Stat. 1064 .)