CFR›Title 40›Chapter I›Part 63›Subpart FFFF›Subject Group Compliance Dates ContainsSection 63.2445CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 63.2445 § 63.2445 When do I have to comply with this subpart? Previous Alternative Means of Compliance Alternative Means of Compliance Next Emission Limits, Work Practice Standards, and Compliance Requirements Emission Limits, Work Practice Standards, and Compliance Requirements