Code of Federal Regulations > Title 40 > Chapter I > Part 85 - PART 85—CONTROL OF AIR POLLUTION FROM MOBILE SOURCES

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

Subpart A - Subparts A-E [Reserved]

Subpart F [§ 85.501 - § 85.535] - Subpart F—Exemption of Clean Alternative Fuel Conversions From Tampering Prohibition

Subpart G - Subparts G-O [Reserved]

Subpart P [§ 85.1501 - § 85.1515] - Subpart P—Importation of Motor Vehicles and Motor Vehicle Engines

Subpart Q - Subpart Q [Reserved]

Subpart R [§ 85.1701 - § 85.1716] - Subpart R—Exclusion and Exemption of Motor Vehicles and Motor Vehicle Engines

Subpart S [§ 85.1801 - § 85.1808] - Subpart S—Recall Regulations

Subpart T [§ 85.1901 - § 85.1909] - Subpart T—Emission Defect Reporting Requirements

Subpart U - Subpart U [Reserved]

Subpart V [§ 85.2101 - § 85.2123] - Subpart V—Warranty Regulations and Voluntary Aftermarket Part Certification Program

Subpart W [§ 85.2201 - § 85.2231] - Subpart W—Emission Control System Performance Warranty Tests

Subpart X [§ 85.2301 - § 85.2305] - Subpart X—Determination of Model Year for Motor Vehicles and Engines Used in Motor Vehicles Under Section 177 and Part A of Title II of the Clean Air Act

Subpart Y [§ 85.2401 - § 85.2401] - Subpart Y—Fees for the Motor Vehicle and Engine Compliance Program