Cars and Light Trucks
Light Duty Greenhouse Gas Standards Compliance Information
The U.S. Environmental Protection Agency and the National Highway Transportation Safety Administration issued national light-duty greenhouse gas and fuel economy standards on April 1, 2010. The greenhouse gas standards apply to cars and light trucks, beginning with the 2012 model year. Manufacturers must meet standards for tailpipe methane and nitrous oxide emissions, plus increasingly stringent fleet average standards for carbon dioxide in each model year through 2016. The regulations provide flexibility to meet the standards by enabling manufacturers to generate emission credits which they may save for future years or sell to other manufacturers.
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This page provides compliance information for manufacturers producing vehicles and engines subject to greenhouse gas standards.
- Reporting Templates
- Certification and Compliance Data Submission Procedures
- Related Actions
- Flex Fuel Vehicle Emision Credit Guidance
Flex Fuel Vehicle Greenhouse Gas Emission Guidance for Auto Manufacturers
This guidance document provides the weighting factor that auto manufacturers may use in calculating flex fuel vehicle emission credits under the light-duty greenhouse gas program for model year 2016-2018 vehicles.
Guidance Letter: E85 Flexible Fuel Vehicle Weighting Factor for Model Year 2016-2018 Vehicles (PDF) (27 pp, 429K, November 2014)
- Greenhouse Gas Emission Requirements Industry Workshop September 23, 2010 (PDF) (84 pp, 610K, June 2011)
Question and Answer Documents
- Frequently Asked Questions: EPA Greenhouse Gas Provisions for Clean Alternative Fuel Conversions of Light-Duty Vehicles and Medium-Duty Passenger Vehicles (PDF) (9 pp, 1.98MB, EPA-420-F-12-056, August 2012)
- Light-duty Greenhouse Gas Manufacturer Questions and EPA Answers (PDF) (14 pp, 602K, EPA-420-F-12-005, January 2012)
- Pre-Model Year Report - Projected Carbon Related Exhaust Emissions (CREE) Compliance Level (Excel) (830K, EPA Form Number 5900-245, August 2011) Contains tabs for
- Model Year Final CREE Compliance Level
- Averaging, Banking, and Trading Summary Table – Primary Program
- Averaging, Banking, and Trading summary table – Temporary Lead Time Allowance Alternative Standards (TLAAS) Program
- Air Conditioning Efficiency Credits
- Air Conditioning Leakage Credits – Passenger Cars
- Air Conditioning Leakage Credits – Light Trucks
- Off-Cycle Technology Credits
- Greenhouse Gas Standard Calculator (Excel) (1.1M, EPA Form Number 5900-244, January 2013)
- Heavy-duty Pickups and Vans Greenhouse Gas Reporting Template (Excel) (490K, EPA Form Number 5900-256, February 2012)
Certification and Compliance Data Submission Procedures
Manufacturers must submit greenhouse gas certification and reporting data through Verify, EPA’s engine and vehicle compliance information system. Verify registration and system information.
Reports and Data
- Greenhouse Gas Emission Standards for Light-Duty Vehicles: Manufacturer Performance Report for the 2013 Model Year
Requests for Off-Cycle Credits
- Request For MY 2012 Through MY 2016 GHG Credits for Advanced Technologies - Petition and Supporting Attachments (PDF) (140 pp, 26MB, September 2013)
- Federal Register Notice: Alternative Method for Calculating Off-cycle Credits for Mercedes-Benz Vehicles Under the Light-duty Greenhouse Gas Emissions Program (PDF) (5 pp, 252K, published October 1, 2013) – This notice invites comment on an alternative methodology submitted by Mercedes-Benz for determining off-cycle credits for the following technologies for the 2012 through 2016 model years: engine stop-start, high-efficiency lighting, infrared glazing, and active seat ventilation.
- Mercedes-Benz Rebuttal of Public Comments: Alternative Method for Calculating Off-Cycle Credits for Mercedes-Benz Vehicles Under the Light-Duty Greenhouse Gas Emissions Program (PDF) (35 pp, 259K, December 5, 2013)
- Mercedes-Benz Supplemental Rebuttal of Public Comments: Alternative Method for Calculating Off-Cycle Credits for Mercedes-Benz Vehicles Under the Light-Duty Greenhouse Gas Emissions Program (PDF) (23 pp, 907K, August 13, 2014)
- EPA Decision Document: Mercedes-Benz Off-cycle Credits for MYs 2012-2016 (PDF) (19 pp, 355K, EPA-420-R-14-025, September 2014)
- Final Rulemaking: Light-Duty Vehicle Greenhouse Gas Emissions Standards and Corporate Average Fuel Economy Standards (PDF) (published May 7, 2010)
- Final Rule for Revisions to the Fuel Economy Label for 2013 Model Year (Signed May 25, 2011) – This rule contained a number of important corrections and clarifications to the Light-Duty Greenhouse Gas Program.
- Final Rulemaking: Greenhouse Gas Emissions Standards and Fuel Efficiency Standards for Medium- and Heavy-Duty Engines and Vehicles (Signed August 9, 2011) – This rule contains some revisions to the light-duty vehicle greenhouse gas requirements.