Subject Top Page: California Phase 3 Reformulated Gasoline (CaRFG3)

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This page last reviewed September 25, 2008

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.

For rulemaking documents including hearing notices, staff reports, 15-day changes or other legal documents for any regulatory item please click here.

California Reformulated Gasoline Phase 3 Regulations

On August 29, 2008, the 2007 amendments to the California Reformulated gasoline regulation became effective. The amendents in abbreviated stirke out undline verision (PDF-336k) or (DOC-450k). A complete California Reformulated Gasoline Regulation with the updated amendments will be up shortly. The old complete California Reformulated Gasoline Regulations as of April 9, 2005 (PDF-219k) or (DOC-348k).

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

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

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)
Toyota Study: Effects of Ethanol on Emissions of Gasoline LDVs.
- Toyota Presentation (PDF-40k)
- Toyota Tests Data (XLS-40k)
Fuel Specifications/On-Road Vehicles Emissions Study in Mexico.
- This study was published in Environmental Science &Technology magazine: Schifter, I., et. al. A Predictive Model to Correlate Fuel Specifications with On-Road Vehicles Emissions in Mexico, Vol. 40, No. 4, 2006, pp. 1270-1279.
- Vehicle Emission Test Data from Mexico (XLS-870k)
AAM and AIAM Study: Sulfur Oxygen Vehicle Emissions Test Program
- Presentation (PDF-69k)
- Test Data (XLS-107k)
CRC Project No. E-60: The Effect of Fuel Sulfur on NH3 and Other Emissions from 2000-2001 Model Year Vehicles.
- Report (PDF-1,253k)
- Test Data (XLS-722k)
CRC Project No. E-67: Effects of Ethanol and Volatility Parameters on Exhaust Emissions.
- Report (PDF-422k)
- Test Data (XLS-407k)
ExxonMobil: LEV/ULEV Gasoline Oxygenate Study.
- Presentation (PDF-17k)
- Test Data (XLS-33k)
Updated California Reformulated Gasoline Predictive Model Database (May 4, 2006).
- Summary (XLS-20k)
- Database (XLS-2,573k)

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