§ 404b — Administration, Protection, And Development; Federal Power Act Inapplicable; Minimum Area

as amended: Provided, That the provisions of the Federal Power Act [16 U.S.C. 791a et seq.] shall not apply to this park: And provided further, That the minimum area to be administered and protected by the National Park Service shall be, for the said Mammoth Cave National Park, twenty thousand acres: Provided further, That no general development of said area shall be undertaken until a major portion of the remainder in such area, including all the caves thereof, shall have been accepted by said Secretary, and he shall have established a schedule of fees for admission to such caves.