(a) For bridge replacement or rehabilitation, TTF bridges are required to meet the following:

1. (1) Must meet the definition of a TTF bridge;
2. (2) Be classified as a Tribal transportation facility;
3. (3) Be classified as in poor condition, have low load capacity, or need highway geometric improvements;
4. (4) Be recorded in the NBI maintained by FHWA;

(b) For new bridge construction, TTF bridges are required to meet the following:

1. (1) Be classified as a Tribal transportation facility;
2. (2) Be a public bridge that meets the definition of a TTF bridge and recorded in the NBI after project completion.