Regulations last checked for updates: Feb 13, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 63.11871 - What is the relationship to 40 CFR part 61, subpart F?

After the applicable compliance date specified in § 63.11875(a), (b) or (c), an affected source that is also subject to the provisions of 40 CFR part 61, subpart F, is required to comply with the provisions of this subpart and no longer has to comply with 40 CFR part 61, subpart F.

authority: 42 U.S.C. 7401
source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.
cite as: 40 CFR 63.11871