Jun 12, 2025 · This page answers questions about GHG emissions from passenger vehicles and how these emissions are measured and calculated.

6 days ago · Regulations for Emissions from Vehicles and Engines ... EPA Regulations Find information about Light- and Medium-duty Vehicles and Heavy-Duty Vehicles.

Apr 18, 2025 · Visit our vehicle emissions page for more details on cleaner emission standards for cars and trucks. No matter what size car or truck you need, you now have more efficient, cleaner options. …

Jul 29, 2025 · Below is a list of all regulations related to GHG emissions from light-duty passenger cars and trucks. Click the regulation titles for additional information, including:

Nov 12, 2025 · We test and analyze vehicles, engines and fuels to ensure they meet federal and fuel economy standards; and we develop new technologies to reduce emissions and increase fuel …

Preliminary data suggest that the average new vehicle CO2 emission rate and fuel economy will continue to improve in model year 2024, and that the impact of BEVs and PHEVs will continue to grow.

Nov 20, 2025 · This report provides data on the fuel economy, carbon dioxide (CO2) emissions, and technology trends of new light-duty vehicles (cars, minivans, sport utility vehicles, and pickup trucks) …

May 7, 2025 · The transportation sector is one of the largest sources of carbon pollution in the U.S. EPA has set carbon emissions standards for passenger cars and trucks, onroad heavy duty trucks and …

Mar 4, 2025 · This page provides links to all federal emission standards on the Emission Standards Reference Guide site for mobile sources, driving cycles and fuel sulfur standards

Mar 4, 2025 · The page contains overview information on mobile sources, EPA's approach to regulating the emissions from mobile sources, and the vehicle/engine certification process.