US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 86 — CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINESSubpart B — Emission Regulations for 1977 and Later Model Year New Light-Duty Vehicles and New Light-Duty Trucks and New Otto-Cycle Complete Heavy-Duty Vehicles; Test Procedures86.10340 C.F.R. § 86.103Abbreviations.Last amended: 2017Year: 2026Length: 15 wordsOfficial source Cite as 40 C.F.R. § 86.103 (2026)The abbreviations in subpart A apply to this subpart. [45 FR 14508, Mar. 5, 1980]Previous40 C.F.R. § 86.102Next40 C.F.R. § 86.104