Final Rule to Revise Existing National GHG Emissions Standards for Passenger Cars and Light Trucks Through Model Year 2026
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Rule Summary
The Environmental Protection Agency (EPA) finalized federal greenhouse gas (GHG) emissions standards for passenger cars and light trucks for Model Years (MY) 2023 through 2026. The final standards leverage advances in clean car technology to unlock $190 billion in net benefits to Americans, including reducing climate pollution, improving public health, and saving drivers money at the pump. These standards are the strongest vehicle emissions standards ever established for the light-duty vehicle sector, and are based on sound science and grounded in a rigorous assessment of current and future technologies. The updated standards will result in avoiding more than 3 billion tons of GHG emissions through 2050.
These standards set the light-duty vehicle greenhouse gas (GHG) program on track to provide a strong launch point for the Agency’s next phase of standards for MY 2027 and beyond. EPA is planning to initiate a separate rulemaking to establish multi-pollutant emission standards under the Clean Air Act for MY 2027 and later that will speed the transition of the light-duty vehicle fleet toward a zero-emissions future consistent with former President Biden’s Executive Order, “Strengthening American Leadership in Clean Cars and Trucks.”
Additional Resources
- Final Rulemaking: Revised 2023 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions Standards (pdf) (published December 30, 2021)
- Regulatory Impact Analysis: Revised 2023 and Later Model Year Light Duty Vehicle GHG Emissions Standards (pdf) (EPA-420-R-21-028, December 2021)
- Fact Sheet: Revised 2023 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions Standards (pdf)(EPA-420-F-21-077, December 2021)
- By the Numbers: Revised 2023 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emissions Standards (pdf) (EPA-420-F-21-078, December 2021)
- Response to Comments: Revised 2023 and Later Model Year Light-Duty Vehicle Greenhouse Gas Emission Standards (pdf) (EPA-420-R-21-027, December 2021)
- EPA model runs and files supporting the final rule's benefit-cost analysis. EPA CCEM PostProcessingTool Project FRM (zip) (December 2021)