EPA and the National Highway Traffic Safety Administration (NHTSA) have developed regulations to reduce greenhouse gas (GHG) emissions and improve the fuel economy of passenger cars and trucks.

EPA is finalizing standards to strengthen federal greenhouse gas (GHG) emissions standards for passenger cars and light trucks by setting stringent requirements for emissions reductions through Model Year (MY) 2026. The final 2023-2026 MY standards would achieve significant GHG emissions reductions along with reductions in other air pollutants. This rule will result in substantial public health and welfare benefits, while providing consumers with savings from lower fuel costs. See the final rule.

In addition, EPA is responsible for developing and implementing regulations to ensure that transportation fuel sold in the U.S. contains a minimum volume of renewable fuel. The Renewable Fuel Standard (RFS)program lays the foundation for achieving significant reductions of GHG emissions from the use of renewable fuels, for reducing imported petroleum, and for encouraging the development and expansion of our nation’s renewable fuels sector. Learn more about the Renewable Fuel Standard (RFS) program.