1978—Subsec. (a). Pub. L. 95–616 provided for treaty obligations with Japan and the Union of Soviet Socialist Republics.

1973—Subsec. (a). Pub. L. 93–205 substituted “listed pursuant to section 1533 of this title as endangered species or threatened species,” for “threatened with extinction,”.

1966—Subsecs. (a), (b). Pub. L. 89–669 added subsecs. (a) and (b). Former paragraph prohibited acts on acquired areas and is now covered by section 668dd(c) and (d)(1) of this title.

Amendment by Pub. L. 93–205 effective Dec. 28, 1973, see section 16 of Pub. L. 93–205, set out as a note under section 1531 of this title.

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.