23 C.F.R. § 450.326 Transportation improvement program: Modification.
Title 23 - Highways
The TIP may be modified at any time consistent with the procedures established in this part for its development and approval. In nonattainment or maintenance areas for transportation related pollutants if the TIP is amended by adding or deleting projects which contribute to and/or reduce transportation related emissions or replaced with a new TIP, new conformity determinations by the MPO and the FHWA and the FTA will be necessary. Public involvement procedures consistent with §450.316(b)(1) shall be utilized in amending the TIP, except that these procedures are not required for TIP amendments that only involve projects of the type covered in §450.324(i).
Title 23: Highways
PART 450—PLANNING ASSISTANCE AND STANDARDS
Subpart C—Metropolitan Transportation Planning and Programming
§ 450.326 Transportation improvement program: Modification.