49 CFR §29.702
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
If the Department of the Interior determines that it provides the transportation services the Tribe intends to retrocede, the Department will notify the Tribe. The Tribe must return all remaining funds, less closeout costs, associated with those transportation services to the Department for transfer to the Department of the Interior.