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Title 40

Displaying title 40, up to date as of 7/16/2026. Title 40 was last amended 7/16/2026.
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  1. Title 40 —Protection of Environment
  2. Chapter I —Environmental Protection Agency
  3. Subchapter C —Air Programs
  4. Part 86   View Full Text
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eCFR Content

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Title 40Protection of EnvironmentPart / Section
Chapter IEnvironmental Protection Agency1 – 1099
Subchapter CAir Programs50 – 99
Part 86Control of Emissions from New and In-Use Highway Vehicles and Engines86.1 – 86.1999
§ 86.1Incorporation by reference.
Subpart AGeneral Provisions for Heavy-Duty Engines and Heavy-Duty Vehicles86.000-2 – 86.099-11
Subpart BEmission 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 Procedures86.101 – 86.166-12
Subpart CEmission Regulations for 1994 and Later Model Year Gasoline-Fueled New Light-Duty Vehicles, New Light-Duty Trucks and New Medium-Duty Passenger Vehicles; Cold Temperature Test Procedures86.201 – 86.213
Subpart D [Reserved]
Subpart EEmission Regulations for 1978 and Later New Motorcycles, General Provisions86.401-2006 – 86.450
Subpart FEmission Regulations for 1978 and Later New Motorcycles; Test Procedures86.501-78 – 86.599
Subpart GSelective Enforcement Auditing of New Light-Duty Vehicles, Light-Duty Trucks, and Heavy-Duty Vehicles86.601-1 – 86.615-84
Subpart H-I [Reserved]
Subpart JFees for the Motor Vehicle and Engine Compliance Program86.901
Subpart KSelective Enforcement Auditing of New Heavy-Duty Engines86.1001
Subpart LNonconformance Penalties for Gasoline-Fueled and Diesel Heavy-Duty Engines and Heavy-Duty Vehicles, Including Light-Duty Trucks86.1101-87 – 86.1117
Subpart M [Reserved]
Subpart NExhaust Test Procedures for Heavy-duty Engines86.1301 – 86.1372
Subparts O-R [Reserved]
Subpart SGeneral Compliance Provisions for Control of Air Pollution From New and In-Use Light-Duty Vehicles, Light-Duty Trucks, and Heavy-Duty Vehicles86.1801-12 – 86.1869-12
Subpart TManufacturer-Run In-Use Testing Program for Heavy-Duty Diesel Engines86.1901 – 86.1930
§§ 86.1931-86.1999 [Reserved]
Appendix I to Part 86
Dynamometer Schedules
Appendix II to Part 86
Temperature Schedules
Appendix III to Part 86
Constant Volume Sampler Flow Calibration
Appendix IV to Part 86
Durability Driving Schedules
Appendix V to Part 86
The Standard Road Cycle (SRC)
Appendix VI to Part 86
Vehicle and Engine Components
Appendix VII to Part 86
Standard Bench Cycle (SBC)
Appendix VIII to Part 86
Aging Bench Equipment and Procedures
Appendix IX to Part 86
Experimentally Determining the R-Factor for Bench Aging Durability Procedures
Appendix X to Part 86
Sampling Plans for Selective Enforcement Auditing of Heavy-Duty Engines and Light-Duty Trucks
Appendix XI to Part 86
Sampling Plans for Selective Enforcement Auditing of Light-Duty Vehicles
Appendix XII to Part 86
Tables for Production Compliance Auditing of Heavy-Duty Engines and Heavy-Duty Vehicles, Including Light-Duty Trucks
eCFR Content