25 CFR §83.20
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Any entity that believes it can satisfy the criteria in this part may submit a documented petition under this part to: Department of the Interior, Office of the Assistant Secretary—Indian Affairs, Attention: Office of Federal Acknowledgment, Mail Stop 4071 MIB, 1849 C Street NW, Washington, DC 20240.