CFR›Title 40›Chapter I›Part 1031 ContainsSubparts A–DCorpusDaily eCFRDisplayed edition2026-04-15Last updated2026-04-15 PART 1031—CONTROL OF AIR POLLUTION FROM AIRCRAFT ENGINES Subparts A Subpart A—Scope and Applicability Sections 1031.1–1031.20 B Subpart B—Emission Standards and Measurement Procedures Sections 1031.30–1031.140 C Subpart C—Reporting and Recordkeeping Sections 1031.150–1031.170 D Subpart D—Reference Information Sections 1031.200–1031.210 Authority42 U.S.C. 7401-7671q.Source87 FR 72351, Nov. 23, 2022, unless otherwise noted. Previous 1030 Part 1030—Control of Greenhouse Gas Emissions from Engines Installed on Airplanes Next 1033 Part 1033—Control of Emissions from Locomotives