25 U.S. Code § 48 - Right of tribes to direct employment of persons engaged for them
Where any of the tribes are, in the opinion of the Secretary of the Interior, competent to direct the employment of their blacksmiths, mechanics, teachers, farmers, or other persons engaged for them, the direction of such persons may be given to the proper authority of the tribe.
R.S. § 2072 derived from act June 30, 1834, ch. 162, § 9, 4 Stat. 737.
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.