StacksVerified U.S. regulatory reference

25 CFR §170.446

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The minimum attachments required for a facility to be added into the NTTFI include the following.
  1. (a)A long-range transportation plan.
  2. (b)A Tribal resolution or official authorization that refers to all route numbers, names, locations, lengths, construction needs, and ownerships.
  3. (c)A Strip map. See § 170.5.
  4. (d)Average Daily Traffic (ADT) documentation.
  5. (e)A typical or representative section photo or bridge profile photo.
  6. (f)Incidental cost verification.
  7. (g)Acknowledgement of Public Authority responsibility.
  8. (h)For proposed roads, see § 170.443 for additional required attachments. Please see the TTP Coding Guide for additional information on the NTTFI minimum attachments.