CFR›Title 40›Chapter I›Part 63›Subpart KKKK›Subject Group Compliance Requirements for the Compliant Material Option ContainsSections 63.3520–63.3522CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 63.3520 § 63.3520 By what date must I conduct the initial compliance demonstration? 63.3521 § 63.3521 How do I demonstrate initial compliance with the emission limitations? 63.3522 § 63.3522 How do I demonstrate continuous compliance with the emission limitations? Next Compliance Requirements for the Control Efficiency/Outlet Concentration Option Compliance Requirements for the Control Efficiency/Outlet Concentration Option