Federal Waiver for California’s Advanced Clean Car Program

The U.S. Environmental Protection Agency (EPA) published the Reconsideration of a Previous Withdrawal of a Waiver for California’s Advanced Clean Car Program Notice of Decision in March 2022, affirming California’s authority under the Clean Air Act to implement its own greenhouse gas (GHG) emission standards and zero emission vehicle (ZEV) sales mandate. States may continue to adopt and enforce California’s GHG standards. This action repeals The Safer Affordable Fuel-Efficient Vehicles Rule Part One: One National Program (SAFE-I), which was issued in September 2019 by EPA and the U.S. Department of Transportation’s National Highway Traffic Safety Administration (NHTSA).

This action is the result of Executive Order 13990, issued in January 2021, which directed the EPA and NHTSA to review and reconsider the SAFE-I Rule. For more information, refer to EPA’s Regulations for Emissions from Vehicles and Engines website.