Regulations last checked for updates: Feb 07, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 93Subpart A - 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
View all text of Subpart A [§ 93.100 - § 93.129]
§ 93.108 - Fiscal constraints for transportation plans and TIPs.

Transportation plans and TIPs must be fiscally constrained consistent with DOT's metropolitan planning regulations at 23 CFR part 450 in order to be found in conformity.

authority: 42 U.S.C. 7401-7671q.
source: 58 FR 62235, Nov. 24, 1993, unless otherwise noted.
cite as: 40 CFR 93.108
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