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Title 25

Displaying title 25, up to date as of 9/10/2026. Title 25 was last amended 12/01/2025.
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Title 25IndiansPart / Section
Chapter IBureau of Indian Affairs, Department of the Interior1 – 299
Subchapter FTribal Government61 – 91
Part 83Procedures for Federal Acknowledgment of Indian Tribes83.1 – 83.62
Subpart AGeneral Provisions83.1 – 83.9
§ 83.1What terms are used in this part?
§ 83.2What is the purpose of the regulations in this part?
§ 83.3Who does this part apply to?
§ 83.4Who cannot be acknowledged under this part?
§ 83.5How does a petitioner obtain Federal acknowledgment under this part?
§ 83.6What are the Department's duties?
§ 83.7How does this part apply to documented petitions submitted before August 17, 2015?
§ 83.8May the deadlines in this part be extended?
§ 83.9How does the Paperwork Reduction Act affect the information collections in this part?
Subpart BCriteria for Federal Acknowledgment83.10 – 83.12
§ 83.10How will the Department evaluate each of the criteria?
§ 83.11What are the criteria for acknowledgment as a federally recognized Indian tribe?
§ 83.12What are the criteria for a previously federally acknowledged petitioner?
Subpart CProcess for Federal Acknowledgment83.20 – 83.46
Subpart DRe-Petition Authorization Process83.47 – 83.62