CFR›Title 40›Chapter I›Part 63›Subpart OOOOOO›Subject Group Standards and Compliance Requirements ContainsSections 63.11416–63.11417CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 63.11416 § 63.11416 What are the standards for new and existing sources? 63.11417 § 63.11417 What are the compliance requirements for new and existing sources? Previous Other Requirements and Information Other Requirements and Information