Regulations for Greenhouse Gas Emissions from Passenger Cars and Trucks
Overview
On March 20, 2024, EPA announced new, more protective final 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 standards for federal greenhouse gas emissions standards for passenger cars and light trucks for model years 2023 through 2026, established in 2021, 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.
- Proposed Rule: Multi-Pollutant Emissions Standards for Model Years 2027 and Later Light-Duty and Medium-Duty Vehicles
- Notice of Decision: 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)
- Final standards to strengthen federal GHG emissions standards for passenger cars and light trucks by setting stringent requirements for emissions reductions through Model Year (MY) 2026
- Proposed Rule to Revise Existing National GHG emissions standards for passenger cars and light trucks through model year 2026
- 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)
- Final Rule: Light-duty Vehicle Greenhouse Gas Program Technical Amendments
- Final Rule: The Safer Affordable Fuel Efficient (SAFE) Vehicles for Model Years 2021-2026
- Final Rule: One National Program on Federal Preemption of State Fuel Economy Standards
Annual Reports
EPA issues annual reports on vehicle manufacturers' performance in meeting the GHG emissions standards, and on light duty fuel economy and GHG emission trends since 1975.
- GHG Emission Standards: Manufacturer Performance Report
- Light-Duty Automotive Technology, Carbon Dioxide Emissions, and Fuel Economy Trends Report
List of Related Regulations
Below is a list of all regulations related to GHG emissions from light-duty passenger cars and trucks.
Click the regulation titles for additional information, including:
- Regulations;
- Regulatory impact analyses;
- Comment summaries;
- Rule histories; and
- Fact sheets.