The Reclamation Service, established in July 1902, changed to the Bureau of Reclamation on June 20, 1923, then to the Water and Power Resources Service on Nov. 6, 1979, and then to the Bureau of Reclamation on May 18, 1981. See 155 Dep’t of the Interior, Departmental Manual 1.1 (2008 repl.); Sec’y Hubert Work, Dep’t of the Interior, Order (June 20, 1923); Sec’y Cecil D. Andrus, Dep’t of the Interior, Secretarial Order 3042, §§ 1, 4 (Nov. 6, 1979); Sec’y James G. Watt, Dep’t of the Interior, Secretarial Order 3064, §§ 3, 5 (May 18, 1981).

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 under section 1451 of this title.