How does a petitioner obtain Federal acknowledgment under this part?

To be acknowledged as a federally recognized Indian tribe under this part, a petitioner must meet the Indian Entity Identification (§ 83.11(a)), Governing Document (§ 83.11(d)), Descent (§ 83.11(e)), Unique Membership (§ 83.11(f)), and Congressional Termination (§ 83.11(g)) Criteria and must: (a) Demonstrate previous Federal acknowledgment under § 83.12(a) and meet the criteria in § 83.12(b); or (b) Meet the Community (§ 83.11(b)) and Political Authority (§ 83.11(c)) Criteria.