The minimum attachments required for a facility to be added into the NTTFI include the following.
A long-range transportation plan.
A Tribal resolution or official authorization that refers to all route numbers, names, locations, lengths, construction needs, and ownerships.
A Strip map. See § 170.5.
Average Daily Traffic (ADT) documentation.
A typical or representative section photo or bridge profile photo.
Incidental cost verification.
Acknowledgement of Public Authority responsibility.
For proposed roads, see § 170.443 for additional required attachments. Please see the TTP Coding Guide for additional information on the NTTFI minimum attachments.