{"data":{"id":"us/23-cfr-661.31","jurisdiction":"us","citation":"23 CFR 661.31","heading":"Do TTF bridge projects have to be listed on an approved TTP TIP?","body":"Yes. All TTF bridge projects must be listed on an approved FHWA TTP TIP. TTF bridge projects included in the TTP TIP that are not fiscally constrained may still be included as a list of projects dependent upon the availability of additional resources, also known as an “illustrative list”.","path":["Title 23—Highways","CHAPTER I—FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER G—ENGINEERING AND TRAFFIC OPERATIONS","PART 661—TRIBAL TRANSPORTATION FACILITY BRIDGE PROGRAM (TTFBP)"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-23.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:50Z","sha256":"73507936d7c666d99902792420cf42629418f01bb586ae1367a2504ee085ee5b","source_id":"us-cfr","stale":true,"prev":"us/23-cfr-661.29","next":"us/23-cfr-661.33"},"notice":"GroundRules: Original legal text. Not legal advice."}