§ 428c.
The Secretary of the Interior is authorized to assign any officials of the Interior Department to the assistance of the commission if he deems it advisable. He is authorized to pay the reasonable expenses of the commission and their assistants incurred in the actual performance of the duties herein imposed upon them.
([Mar. 26, 1928, ch. 248, § 4], [45 Stat. 367]; Ex. Ord. No. 6166, § 2, June 10, 1933; Ex. Ord. No. 6228, § 1, July 28, 1933; [Pub. L. 86–738, § 5], Sept. 8, 1960, [74 Stat. 876].)