CFR›Title 40›Chapter I›Part 148›Subpart A ContainsSections 148.1–148.5CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Subpart A—General Sections 148.1 § 148.1 Purpose, scope and applicability. 148.2 § 148.2 Definitions. 148.3 § 148.3 Dilution prohibited as a substitute for treatment. 148.4 § 148.4 Procedures for case-by-case extensions to an effective date. 148.5 § 148.5 Waste analysis. Next B Subpart B—Prohibitions on Injection