CFR›Title 40›Chapter I›Part 145›Subpart A›40 CFR 145.2 Citation40 CFR 145.2CorpusDaily eCFRDisplayed edition2026-09-17Last updated2026-09-17 § 145.2 Definitions.The definitions of part 144 apply to all subparts of this part. Previous 145.1 § 145.1 Purpose and scope.