Final Rule: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles
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Rule Summary
Para información en español, haga clic aquí.
On March 20, 2024, EPA announced a final rule, Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles, that sets new, more protective standards to further reduce harmful air pollutant emissions from light-duty and medium-duty vehicles starting with model year 2027. The final rule builds upon EPA’s final standards for federal greenhouse gas emissions standards for passenger cars and light trucks for model years 2023 through 2026 and leverages advances in clean car technology to unlock benefits to Americans ranging from improving public health through reducing smog- and soot-forming pollution from vehicles, to reducing climate pollution, to saving drivers money through reduced fuel and maintenance costs. These standards will phase in over model years 2027 through 2032.
- Final Rule: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles (pdf) (16.0 MB, published April 18, 2024)
- Final rule correction: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles (pdf) (227 KB, published June 13, 2024)
Rule History
Additional Resources
- Fact Sheet: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles (pdf) (274 KB, March 2024, EPA-420-F-24-016)
- Fact sheet in Spanish: Normas de emisiones multicontaminantes para vehículos de servicio liviano y mediano de los años 2027 y posteriores: regla final (pdf) (280 KB, March 2024, EPA-420-F-24-017)
- Regulatory Impact Analysis: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles (pdf) (17 MB, March 2024, EPA-420-R-24-004)
- Response to Comments: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles (pdf) (26.8 MB, March 2024, EPA-420-R-24-005)
- Air Quality Analysis for the Light and Medium-Duty Vehicle Multipollutant Rule - Memo to the Docket (pdf) (18 MB, March 2024, EPA-420-R-24-008)
- EPA’s OMEGA model runs and files supporting the final rule's benefit-cost and effects analysis
- Redline Version of EPA’s Final Regulations under the Final Rulemaking, “Multi- Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles” (pdf)
