Regulations last checked for updates: Jul 11, 2026

Title 40 - Protection of Environment last revised: Aug 11, 2026
§ 63.2831 - Where can I find definitions of key words used in this subpart?

You can find definitions of key words used in this subpart in § 63.2872.

authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
cite as: 40 CFR 63.2831