California Certification Fuel

This page last reviewed November 1, 2012

The California Air Resources Board developed a new certification fuel for 2015 and newer vehicles that closely resembles in-use fuel. The current certification fuel contains methyl-tertiary butly ether (MTBE), which has been banned in California gasoline since December 31, 2003.  The certification fuel for 2015 and newer vehicles contains 10 volume percent ethanol (E10) instead of MTBE.  This page contains information related  to California's certification fuel.

Regulation

• Current California Certification Fuel  
  "California Exhaust Emissions and Test Procedures for 1988-2000 Model Passenger Cars, Light -Duty and Medium-Duty Vehicles"
  (PDF - 388 KB)
• 2015 California Certification Fuel 
  "California 2015 and Subsequent Model Criteria Pollutant Exhaust Emission Standards and Test Procedures and 2017 and Subsequent Model Greenhouse Gas Exhaust Emission Standards and Test Procedures for Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles"
  (PDF - 1.28 MB)

Other Information

• Workshops / Meetings
• Contacts

Related Links

• Low Emission Vehicle Program (LEV III)
• Advanced Clean Cars
• LEV II
• Evaporative Emission Controls for Vehicles