CFR›Title 40›Chapter I›Part 63›Subpart RRRR›Subject Group Compliance Requirements for the Compliant Material Option ContainsSections 63.4940–63.4942CorpusDaily eCFRDisplayed edition2026-08-24Last updated2026-08-24 Sections 63.4940 § 63.4940 By what date must I conduct the initial compliance demonstration? 63.4941 § 63.4941 How do I demonstrate initial compliance with the emission limitations? 63.4942 § 63.4942 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