163.72—Supervisory relationship.
In any agreement authorized by the Secretary, Indian tribes and their employees may perform cooperative work under the supervision of the Department of the Interior in emergencies or otherwise, as mutually agreed to, but shall not be deemed to be Federal employees other than for purposes of 28 U.S.C. 2671 through 2680, and 5 U.S.C. 8101 through 8193.