40 C.F.R. § 93.114 Criteria and procedures: Currently conforming transportation plan and TIP.
Title 40 - Protection of Environment
There must be a currently conforming transportation plan and currently conforming TIP at the time of project approval. (a) Only one conforming transportation plan or TIP may exist in an area at any time; conformity determinations of a previous transportation plan or TIP expire once the current plan or TIP is found to conform by DOT. The conformity determination on a transportation plan or TIP will also lapse if conformity is not determined according to the frequency requirements specified in §93.104. (b) This criterion is not required to be satisfied at the time of project approval for a TCM specifically included in the applicable implementation plan, provided that all other relevant criteria of this subpart are satisfied.
Title 40: Protection of Environment
PART 93—DETERMINING CONFORMITY OF FEDERAL ACTIONS TO STATE OR FEDERAL IMPLEMENTATION PLANS
Subpart A—Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Developed, Funded or Approved Under Title 23 U.S.C. or the Federal Transit Laws
§ 93.114 Criteria and procedures: Currently conforming transportation plan and TIP.