Regulations for Greenhouse Gas Emissions from Passenger Cars and Trucks
The national program for greenhouse gas emissions (GHG) and fuel economy standards for light-duty vehicles (passenger cars and trucks) was developed jointly by EPA and the National Highway Traffic Safety Administration (NHTSA).
- Phase 1 - Model years 2012 - 2016; and
- Phase 2 - Model years 2017 - 2025.
As part of the 2017-2025 standards rulemaking, EPA made a regulatory commitment to conduct a Midterm Evaluation of the longer-term standards for model years 2022-2025, in coordination with NHTSA and the California Air Resources Board.
In April 2020, NHTSA and EPA amended the Corporate Average Fuel Economy (CAFE) and greenhouse gas emissions standards for passenger cars and light trucks and established new less stringent standards, covering model years 2021 through 2026.
- 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
- Midterm Evaluation of Light-duty Vehicle GHG Emissions Standards for Model Years 2022-2025
- Final Rule for Model Year 2017 and Later Light-Duty Vehicle Greenhouse Gas Emissions and Corporate Average Fuel Economy Standards
- Final Rule for Model Year 2012 - 2016 Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards
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.
- Regulatory impact analyses;
- Comment summaries;
- Rule histories; and
- Fact sheets.