All contracts for the services of legal counsel or technical specialists negotiated and executed with the Choctaw, Chickasaw, Cherokee, Creek, or Seminole Tribes or Nations, also known as the Five Civilized Tribes, shall be in strict compliance with the requirements of section 2103 of the Revised Statutes of the United States (25 U.S.C. 81).

[37 FR 10440, May 23, 1972. Redesignated at 47 FR 13327, Mar. 30, 1982]