Section, acts June 25, 1910, ch. 431, § 13, 36 Stat. 858 ; June 29, 1960 , Pub. L. 86–533, § 1(13) , 74 Stat. 248 , authorized withdrawal of lands in Indian reservations for power or reservation sites. Statutory Notes and Related Subsidiaries Effective Date of Repeal Pub. L. 94–579, title VII, § 704(a) , Oct. 21, 1976 , 90 Stat. 2792 , provided that the repeal made by section 704(a) is effective on and after Oct. 21, 1976 . Savings Provision Repeal by Pub. L. 94–579 not to be construed as terminating any valid lease, permit, patent, etc., existing on Oct. 21, 1976 , see section 701 of Pub. L. 94–579 , set out as a note under section 1701 of this title .