40 CFR § 93.108 - Fiscal constraints for transportation plans and TIPs.

---
identifier: "/us/cfr/t40/s93.108"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 93.108 - Fiscal constraints for transportation plans and TIPs."
title_number: 40
title_name: "Protection of Environment"
section_number: "93.108"
section_name: "Fiscal constraints for transportation plans and TIPs."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "93"
part_name: "DETERMINING CONFORMITY OF FEDERAL ACTIONS TO STATE OR FEDERAL IMPLEMENTATION PLANS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401-7671q."
regulatory_source: "58 FR 62235, Nov. 24, 1993, unless otherwise noted."
cfr_part: "93"
---


# 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.