California Air Resources Board

Executive Order D-5-99 issued by Governor Gray Davis on the March 2, 1999, declared that, "on balance, there is significant risk to the environment from using Methyl Tertiary-Butyl Ether (MTBE) in gasoline in California." This declaration was followed by the assignment of 11 tasks to various designated state agencies responsible for carrying out the decree of the executive order. The Executive Order requires the California Air Resources Board (CARB) to adopt gasoline regulations to phase out MTBE, and requires CARB, the Office of Environmental Health Hazard Assessment (OEHHA), and the State Water Resources Control Board (SWRCB) to conduct an ethanol fate, transport, and health risk analysis.

• California Phase 3 Reformulated Gasoline (CaRFG3)

Air Quality Impacts (Peer Review Draft Staff Report)

• Main Report - Air Quality Impacts of the Use of Ethanol in California Reformulated Gasoline
  • Main Report Update (12-30-99)
• Appendix A - Emissions
  • Attachment A1 - Peer Review of Organic Gas Emission Profiles
  • Attachment A2 - Tables of Organic Gas Emission Profiles
  • Attachment A3 - Tables of Organic Gas Profiles from Emission Testing
• Appendix B - Photochemical Modeling
• Appendix C - Baseline and Future Air Quality Concentrations
• Appendix D - Response to Scientific Peer Review and Public Comments

Emission Profiles

Development of Emission Profiles for CaRFG without MTBE

• Current Version PDF | Excel
• July 12, 1999 Public Workshop Version

Review of Organic Gas Speciation Profiles of Exhaust and Evaporative Emissions from Alternate Gasoline Formulations

This review concerned an earlier draft version of the profiles.           

• June 23, 1999 Version
• July 16, 1999 Version

Public Meetings

References Used in Ethanol Fate and Transport Analysis PDF | Word

Ethanol Archive