Joint Technical Support Document: Final Rulemaking for 2017-2025 Light-Duty Vehicle Greenhouse Gas Emission Standards and Corporate Average Fuel Economy Standards

The Environmental Protection Agency (EPA) and the National Highway Traffic Safety Administration (NHTSA) are issuing a joint final rule to establish new standards for light-duty highway vehicles that will reduce greenhouse gas emissions and improve fuel economy. This joint final rulemaking is consistent with the Presidential Memorandum issued by President Obama on May 21, 2010, requesting that NHTSA and EPA develop through notice and comment rulemaking a coordinated National Program to reduce greenhouse gas emissions and improve the fuel economy of light-duty vehicles for model years (MY) 2017-2025. This final rule, consistent with the President’s request, responds to the country’s critical need to address global climate change and to reduce oil consumption. EPA is regulating greenhouse gas (GHG) emissions standards under the Clean Air Act, and NHTSA is regulating Corporate Average Fuel Economy (CAFE) standards under the Energy Policy and Conservation Act, as amended. These standards apply to passenger cars, light-duty trucks, and medium-duty passenger vehicles, covering model years 2017 through 2025. They require these vehicles to meet an estimated combined average emissions level of 163 grams of carbon dioxide per mile in MY 2025 under EPA’s GHG program, and 49.6 mpg in MY 2025 under NHTSA’s CAFE program and represent a harmonized and consistent national program. These standards are designed such that compliance can be achieved with a single national vehicle fleet whose emissions and fuel economy performance improves each year from MY 2017 to 2025. This document describes the supporting technical analysis for areas of these joint rules which are consistent between the two agencies.

• Record URL:
  • http://epa.gov/otaq/climate/documents/420r12901.pdf
• 
• Corporate Authors:

  Environmental Protection Agency

  Office of Transportation and Air Quality, 2000 Traverwood Drive
  Ann Arbor, MI  United States  48105

  National Highway Traffic Safety Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Publication Date: 2012-8

Language

• English

Media Info

• Media Type: Digital/other
• Pagination: 602p

Subject/Index Terms

• TRT Terms: Air quality management; Automobiles; Carbon dioxide; Exhaust gases; Fuel consumption; Greenhouse gases; Light trucks; Pollutants; Standards
• Identifier Terms: Corporate Average Fuel Economy (CAFE)
• Uncontrolled Terms: Emission standards; Light duty vehicles
• Subject Areas: Environment; Highways; Vehicles and Equipment; I15: Environment; I90: Vehicles;

Filing Info

• Accession Number: 01454078
• Record Type: Publication
• Report/Paper Numbers: EPA-420-R-12-901
• Files: TRIS, USDOT
• Created Date: Nov 15 2012 2:01PM