CFR›Title 40›Chapter I›Part 63›Subpart DDDDDD›Subject Group Standards and Compliance Requirements ContainsSection 63.11142CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 63.11142 § 63.11142 What are the standards and compliance requirements for new and existing sources? Previous Other Requirements and Information Other Requirements and Information