As stated in the current Constitution of the Cheyenne and Arapaho Tribes, Article IV Membership:
Section 1. Requirements. The Membership of the Tribes shall consist of the following person:
- All persons whose names appear on the tribal membership roll prepared pursuant to the Act of October 31, 1967; provided that corrections may be made to the roll at any time, subject to the approval of the Secretary of the Interior.
- Each person of ¼, or more, a degree of the blood of the Cheyenne-Arapaho Tribes of Oklahoma, born after October 31, 1967, but prior to the effective date of the constitution and bylaws adopted in 1975, both of whose parents are members of the tribe.
- Each person of ¼, or more, a degree of the blood of the Cheyenne-Arapaho Tribes of Oklahoma, born after October 31, 1967, but prior to the effective date of the constitution and bylaws adopted in 1975, if such is admitted to membership by a majority vote of the Legislature certifying compliance with this section.
- Each person of ¼, or more, a degree of the Cheyenne-Arapaho Tribes of Oklahoma, born to a member of the tribes after the effective date of the constitution and bylaws adopted in 1975.