1978—Puspan. L. 95–616 incorporated existing provisions in pars. (1) and (2) and cls. (A) and (B), made provisions applicable to interests in approved areas, and inserted authority for purchase or acquisition for other management purposes.

Transfer of functions of Secretary of Agriculture to Secretary of the Interior by Reorg. Plan No. II of 1939, see Transfer of Functions note set out under section 715a of this title.