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  2. Regulations for Emissions from Vehicles and Engines

Petitions for Reconsideration of SAFE-1 Submitted to EPA

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Notice of Reconsideration of a Previous Withdrawal of a Waiver for California’s Advanced Clean Car Program (Light-Duty Vehicle Greenhouse Gas Emission Standards and Zero Emission Vehicle Requirements)

Petitions for reconsideration of the 2019 action titled The Safer Affordable Fuel-Efficient Vehicles Rule Part One: One National Program Rule (SAFE-1).

  • Petition for Clarification / Reconsideration submitted on October 9, 2019, by the California Air Resources Board and the California Attorney General Xavier Becerra (pdf) (197.26 KB, October 9, 2019)
  • Petition for Reconsideration submitted on November 25, 2019 by the Center for Biological Diversity, Chesapeake Bay Foundation, Environment America, Environmental Defense Fund, and other environmental groups (pdf) (383.15 KB, November 25, 2019)
  • Petition for Reconsideration submitted on November 26, 2019 on behalf of the States of California, by and through Attorney General Xavier Becerra and the California Air Resources Board, and multiple other States (pdf) (785.42 KB, November 26, 2019)

Regulations for Emissions from Vehicles and Engines

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Contact Us About Regulations for Emissions from Vehicles and Engines
Contact Us About Regulations for Emissions from Vehicles and Engines to ask a question, provide feedback, or report a problem.
Last updated on May 21, 2025
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