CFR›Title 40›Chapter I›Part 63›Subpart MMMM›Subject Group Compliance Requirements for the Compliant Material Option ContainsSections 63.3940–63.3942CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 63.3940 § 63.3940 By what date must I conduct the initial compliance demonstration? 63.3941 § 63.3941 How do I demonstrate initial compliance with the emission limitations? 63.3942 § 63.3942 How do I demonstrate continuous compliance with the emission limitations? Next Compliance Requirements for the Emission Rate With Add-On Controls Option Compliance Requirements for the Emission Rate With Add-On Controls Option