Section 5.1 - DefinitionsFor purposes of making appointments to vacancies in all positions in the Bureau of Indian Affairs a preference will be extended to persons of Indian descent who are:
(a) Members of any recognized Indian tribe now under Federal Jurisdiction;(b) Descendants of such members who were, on June 1, 1934, residing within the present boundaries of any Indian reservation;(c) All others of one-half or more Indian blood of tribes indigenous to the United States;(d) Eskimos and other aboriginal people of Alaska; and(e) For one (1) year or until the Osage Tribe has formally organized, whichever comes first, effective January 5, 1989, a person of at least one-quarter degree Indian ancestry of the Osage Tribe of Indians, whose rolls were closed by an act of Congress.43 FR 2393, Jan. 17, 1978. Redesignated at 47 FR 13327, Mar. 30, 1982, as amended at 54 FR 283, Jan. 5, 1989