25 C.F.R. § 170.804
Who should be contacted if a Tribal transportation facility is not being maintained to TTP standards due to insufficient funding?
The Tribe may notify BIA or FHWA if the Tribe believes that a facility on the NTTFI is not being adequately maintained to the standards identified in § 170.803. If BIA or FHWA determines that a Tribal transportation facility is not being maintained, it will:
(a) Notify the facility owner;
(b) Provide a draft copy of the report to the affected Tribe for comment before forwarding it to Secretary of Transportation; and
(c) Report these findings to the appropriate office within FHWA.