Provided, howeverAfter , no permit, license, lease, or other authorization for the use of land within the Lassen Volcanic National Park, California, for the erection and maintenance of summer homes or cottages shall be granted or made: , That the Secretary of the Interior may, in his discretion, renew any permit, license, lease, or other authorization for such purpose granted or made prior to .
Jan. 26, 1931, ch. 47, § 3 46 Stat. 1043 (, .)