25 CFR § 1000.333
How does a Tribe/Consortium retrocede a program?
February 24, 2021
The Tribe/Consortium must submit:
(a) A written notice to:
(1) The Office of Self-Governance for BIA programs; or
(2) The appropriate bureau for non-BIA programs; and
(b) A Tribal resolution or other official action of its governing body.