25 U.S. Code § 788e - Disposition of judgment funds
The Secretary of the Interior shall prepare a roll of the Creek Indians who meet the following requirements: (1) they were born on or prior to and living on September 21, 1968, and (2) their names or the names of lineal ancestors through whom eligibility is claimed appear on either the 1857 or 1859 payment roll prepared pursuant to Article VI of the Treaty of August 7, 1856 (11 Stat. 699), or on the Final Roll of Creeks by Blood closed as of March 4, 1907, pursuant to statute.
Applications for enrollment shall be filed with the Area Director, Bureau of Indian Affairs, Muskogee, Oklahoma, in the manner, within the time limit, and on the form prescribed for that purpose. The determination of the Secretary of the eligibility for enrollment of an applicant shall be final.