(a) Indian tribes organized pursuant to the Indian Reorganization Act of June 18, 1934 (48 Stat. 984; 25 U.S.C. 461-479), as amended, may employ legal counsel. The choice of counsel and the fixing of fees are subject under 25 U.S.C. 476 to the approval of the Secretary of the Interior or his authorized representative.

(b) Attorneys may be employed by Indian tribes not organized under the Act of June 18, 1934, under contracts subject to approval under 25 U.S.C. 81 and the Reorganization Plan No. 3 of 1950, 5 U.S.C. 481,note,by.

(c) Any action of the authorized representative of the Secretary of the Interior which approves, disapproves or conditionally approves a contract pursuant to paragraph (a) or (b) of this section shall be final.

(d) Practice of such attorneys before the Bureau of Indian Affairs and the Department of the Interior is subject to the requirements of 43 CFR 1.1 through 1.7.

All such attorneys or agents seeking approval of their employment by Indian tribes or desiring to represent individual claimants before the Indian Bureau shall be required to comply fully with the regulations of the Department promulgated September 27, 1917, governing admission to practice, and to take the oath of allegiance and to support the Constitution of the United States, as required by section 3478 of the United States Revised Statutes (31 U.S.C. 204).