25 U.S. Code § 33 - Superintendents in charge of reservations; administration of oath of office
Superintendents and acting superintendents in charge of Indian reservations, schools, irrigation and allotment projects are authorized and empowered to administer the oath of office required of employees placed under their jurisdiction.
Section is from the Indian Appropriation Act, 1914.
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.