The clause “heretofore required to be approved under existing law by the Secretary of the Interior” after the words “but all such undisputed claims or uncontested leases (except oil and gas leases)” omitted from text as superfluous.

For transfer of functions of other officers, employees, and agencies of Department of the Interior, with certain exceptions, to Secretary of the Interior, with power to delegate, see Reorg. Plan No. 3 of 1950, §§ 1, 2, eff. May 24, 1950, 15 F.R. 3174, 64 Stat. 1262, set out in the Appendix to Title 5, Government Organization and Employees.