CFR›Title 40›Chapter I›40 CFR Part 92 Citation40 CFR Part 92ContainsSections 92.1–92.2 through 92.3CorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 92—CONTROL OF AIR POLLUTION FROM LOCOMOTIVES AND LOCOMOTIVE ENGINES Sections 92.1 § 92.1 Applicability. 92.2 through 92.3 §§ 92.2 through 92.3 [Reserved] Authority42 U.S.C. 7401-7671q.Source86 FR 34373, June 29, 2021, unless otherwise noted. Previous 91 Part 91—Control of Emissions from Marine Spark-Ignition Engines Next 93 Part 93—Determining Conformity of Federal Actions to State or Federal Implementation Plans