25 CFR § 224.159 - How will reassumption affect valid existing rights or lawful actions taken before the effective date of the reassumption?

---
identifier: "/us/cfr/t25/s224.159"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "25 CFR § 224.159 - How will reassumption affect valid existing rights or lawful actions taken before the effective date of the reassumption?"
title_number: 25
title_name: "Indians"
section_number: "224.159"
section_name: "How will reassumption affect valid existing rights or lawful actions taken before the effective date of the reassumption?"
chapter_name: "BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR"
subchapter_number: "I"
subchapter_name: "ENERGY AND MINERALS"
part_number: "224"
part_name: "TRIBAL ENERGY RESOURCE AGREEMENTS UNDER THE INDIAN TRIBAL ENERGY DEVELOPMENT AND SELF DETERMINATION ACT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "25 U.S.C. 2 and 9; 25 U.S.C. 3501-3504; Pub. L. 109-58; Pub. L. 115-325."
regulatory_source: "73 FR 12821, Mar. 10, 2008, unless otherwise noted."
cfr_part: "224"
---


# 224.159 How will reassumption affect valid existing rights or lawful actions taken before the effective date of the reassumption?

Reassumption will not affect valid existing rights that vested before the effective date of the reassumption or lawful actions the Tribe and the Secretary took before the effective date of the reassumption.