25 U.S. Code § 714b - Membership rolls
The membership roll is declared open. The Interim Council and tribal officials under the Tribe’s constitution and bylaws shall take such measures as will insure the continuing accuracy of the membership roll.
A member who is eighteen years of age or older is entitled and eligible to be given notice of, attend, participate in, and vote at, general council meetings and to nominate candidates for, to run for any office in, and to vote in elections of members to the interim council  and to other tribal councils.
 So in original. Probably should be “allottee”.
 So in original. Probably should be “Interim Council”.