California Air Resources Board

Governor Davis signed Executive Order D-5-99 (Executive Order) on March 25, 1999, which directs the phase-out of methyl tertiary butyl ether (MTBE) in California's gasoline by December 31, 2002. The Executive Order also directs the ARB to adopt gasoline regulations to facilitate the removal of MTBE without reducing the emissions benefits of the existing program. This page presents information regarding the Proposed Phase 3 Reformulated Gasoline Regulations.

California Reformulated Gasoline Phase 3 Regulations

The complete California Reformulated Gasoline Regulations as of February 16, 2014

Board Hearing Documents - Notice of Public Hearing, Staff Report and Associated Materials

• 2013 Amendments to the Regulations for Gasoline and Diesel Test Methods (January 25, 2013 Hearing)
• 2011 Amendments to the CaRFG3 Regulations (October 21, 2011 Hearing)
• 2007 Amendments to the CaRFG3 Regulations (June 14, 2007 Hearing)
• 2005 Emergency Regulatory Amendment Relaxing the RVP Standard for CaRFG3 in September and October (September 8, 2005 Hearing)
• 2004 Amendments Refining the CaRFG3 Regulations (November 18, 2004 Hearing)
• CaRFG3 Amendments to Refine MTBE Prohibitions (December 12, 2002 Hearing)
• CaRFG3 Amendments to Postpone MTBE Prohibitions (July 25, 2002 Hearing)
• CaRFG3 Follow-up Amendments (November 16, 2000 Hearing)
• CaRFG3 Rulemaking Documents (December 9, 1999 Hearing)

Public Meetings and Draft Documents

• Revised Draft Proposed Regulatory Amendments and Interim Guidance on CaRFG3 Implementation Issues (July 22, 2004)
• Meetings, Notices, Reports and Information Regarding Gasoline Activities

Other Information

• CaRFG3 Predictive Model Development: Information about development of the CaRFG3 Predictive Model
• Ethanol Fate, Transport, and Health Risk Analysis
• Health and Environmental Assessment of the Use of Ethanol as a Fuel Oxygenate (LLNL)

CaRFG3 Commingling Study

• Draft Fuel Sampling Protocol

CARB Email List for Fuels

If you would like to receive an email when changes are made to the fuel specifications area of this website, you can subscribe to the Fuels Email list.