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Advancing Fuel Economy Regulatory Programs

MCLI Recommendation: “Both EPA and NHTSA should consider establishing a post-2027 heavy-duty vehicle and engine GHG/fuel economy regulatory program. EPA and NHTSA could interpret their enabling statutes to allow regulations requiring the production and sale of hybrid, fuel cell, or battery-electric vehicles.”

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10 resources

Example Executive Branch

EPA’s New Emissions Standards for Heavy-Duty Vehicles

In January 2023, the Environmental Protection Agency finalized stricter emissions standards for heavy-duty vehicles. The agency’s new rule, part of its larger Clean Trucks Plan, is the first time poll...
Resource States and State Governments

New Jersey’s Diesel-Powered Truck Phaseout

In December 2021, the New Jersey Department of Environmental Protection adopted a rule to phase out diesel-powered trucks – meaning anything bigger than a delivery van – starting in 2025. Based on Cal...
Example States and State Governments

California Air Resources Board’s Zero-Emission Vehicle Program

California Air Resources Board’s light-duty vehicle zero-emission vehicle (ZEV) program, which requires manufacturers meet a ZEV obligation based on a percentage of the manufacturer’s sales, could be ...
Example States and State Governments

California Zero Emissions Truck Requirements

In June 2020, the California Air Resources Board adopted a first-in-the-world rule requiring truck manufacturers to transition from diesel trucks and vans to electric zero-emission trucks beginning in...
Example States and State Governments

Colorado Adopts Advanced Clean Trucks and NOx Rules

In April 2023, Colorado adopted Advanced Clean Trucks (ACT) and Low-Nitrogen Oxides (Low-NOx) rules, adding their name to the list of states following California’s model. Under the ACT rules, beginnin...
Example States and State Governments

New York’s Zero Emissions Trucks Regulation

In September 2021, the NYSDEC released a proposed regulation that would significantly reduce air pollution from trucks. If adopted, the regulation would accelerate zero-emission truck sales, resulting...
Resource Executive Branch

EPA’s Finalized Tailpipe Regulations (2024)

In March 2024, EPA finalized new rules on vehicle emissions for both light- and heavy-duty vehicles that will push the auto industry to accelerate its transition to electric vehicles. For light- and m...
Example States and State Governments

Oregon’s Advanced Clean Trucks Rules

In November 2021, Oregon adopted elements of California’s Advanced Clean Trucks Rule, which requires manufacturers of medium- and heavy- duty vehicles to sell a certain percentage of zero emission veh...
Example States and State Governments

Washington’s Advanced Clean Truck and ZEV Regulations

In November 2021, Washington State adopted California’s more protective vehicle emission standards for new vehicles – starting with model year 2025 and later. This rulemaking expands Washington’s vehi...
Example States and State Governments

Massachusetts Emergency Advanced Clean Trucks Regulation

In December 2021, to further reduce transportation emissions and accelerate the adoption of zero-emission vehicles (ZEV), the Massachusetts Department of Environmental Protection filed emergency regul...