Regulations last checked for updates: May 23, 2025

Title 23 - Highways last revised: May 19, 2025
§ 633.211 - Implementation of the Clean Air Act and the Federal Water Pollution Control Act.

Pursuant to regulations of the Environmental Protection Agency (40 CFR part 15) implementing requirements with respect to the Clean Air Act and the Federal Water Pollution Control Act are included in appendix B to this part.

[40 FR 49084, Oct. 21, 1975]
cite as: 23 CFR 633.211