2022-04934: Control of Air Pollution From New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards

Summary

The Environmental Protection Agency (EPA) is proposing a rule that would reduce air pollution from highway heavy-duty vehicles and engines, including ozone, particulate matter, and greenhouse gases. This proposal would change the heavy-duty emission control program-- including the standards, test procedures, useful life, warranty, and other requirements--to further reduce the air quality impacts of heavy- duty engines across a range of operating conditions and over a longer period of the operational life of heavy-duty engines. Heavy-duty vehicles and engines are important contributors to concentrations of ozone and particulate matter and their resulting threat to public health, which includes premature death, respiratory illness (including childhood asthma), cardiovascular problems, and other adverse health impacts. This proposal would reduce emissions of nitrogen oxides and other pollutants. In addition, this proposal would make targeted updates to the existing Heavy-Duty Greenhouse Gas Emissions Phase 2 program, proposing that further GHG reductions in the MY 2027 timeframe are appropriate considering lead time, costs, and other factors, including market shifts to zero-emission technologies in certain segments of the heavy-duty vehicle sector. We also propose limited amendments to the regulations that implement our air pollutant emission standards for other sectors (e.g., light-duty vehicles, marine diesel engines, locomotives, various types of nonroad engines, vehicles, and equipment).

The agency’s own summary, as published.

What this changes

Amends 25 parts of the Code of Federal Regulations — the standing rules this notice rewrites.

• 40 CFR 2 Public Information
• 40 CFR 59 National Volatile Organic Compound Emission Standards for Consumer and Commercial Products
• 40 CFR 60 Standards of Performance for New Stationary Sources
• 40 CFR 80 Regulation of Fuels and Fuel Additives
• 40 CFR 85 Control of Air Pollution from Mobile Sources
• 40 CFR 86 Control of Emissions from New and In-Use Highway Vehicles and Engines
• 40 CFR 87 Control of Air Pollution from Aircraft and Aircraft Engines
• 40 CFR 600 Fuel Economy and Greenhouse Gas Exhaust Emissions of Motor Vehicles
• 40 CFR 1027 Fees for Vehicle and Engine Compliance Programs
• 40 CFR 1030 Control of Greenhouse Gas Emissions from Engines Installed on Airplanes
• 40 CFR 1033 Control of Emissions from Locomotives
• 40 CFR 1036 Control of Emissions from New and In-Use Heavy-Duty Highway Engines
• 40 CFR 1037 Control of Emissions from New Heavy-Duty Motor Vehicles
• 40 CFR 1039 Control of Emissions from New and In-Use Nonroad Compression-Ignition Engines
• 40 CFR 1042 Control of Emissions from New and In-Use Marine Compression-Ignition Engines and Vessels
• 40 CFR 1043 Control of NOX, SOX, and PM Emissions from Marine Engines and Vessels Subject to the MARPOL Protocol
• 40 CFR 1045 Control of Emissions from Spark-Ignition Propulsion Marine Engines and Vessels
• 40 CFR 1048 Control of Emissions from New, Large Nonroad Spark-Ignition Engines
• 40 CFR 1051 Control of Emissions from Recreational Engines and Vehicles
• 40 CFR 1054 Control of Emissions from New, Small Nonroad Spark-Ignition Engines and Equipment
• 40 CFR 1060 Control of Evaporative Emissions from New and In-Use Nonroad and Stationary Equipment
• 40 CFR 1065 Engine-Testing Procedures
• 40 CFR 1066 Vehicle-Testing Procedures
• 40 CFR 1068 General Compliance Provisions for Highway, Stationary, and Nonroad Programs
• 40 CFR 1090 Regulation of Fuels, Fuel Additives, and Regulated Blendstocks