California Reformulated Gasoline Phase 3 (CaRFG3)

This page last updated May 31, 2018

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 (PDF- 1.2M)

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

July 22, 2004: Revised Draft Proposed Regulatory Amendments and Interim Guidance on CaRFG3 Implementation Issues (PDF - 95k)
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 (PDF-40k)

ARB List Server for Fuels

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Contact Us

(800) 242-4450 | helpline@arb.ca.gov
1001 I Street, Sacramento, CA 95814
P.O. Box 2815, Sacramento, CA 95812

The California Air Resources Board is one of six boards, departments, and offices under the California Environmental Protection Agency.