California Diesel Fuel Program

This page last reviewed October 4, 2011

This page provides information on California's diesel fuel program. The California diesel fuel program set stringent standards for California diesel that produced cost-effective emission reductions from diesel-powered vehicles. The diesel fuel program set specifications for aromatic hydrocarbons and sulfur and also established a lubricity standard.

Background

• Lubricity Standard Amendments (November 24, 2004)
• Low Sulfur Diesel (July 24, 2003)
• Harborcraft and Locomotives Diesel Fuel (November 18, 2004)
• Initial Diesel Fuel Regulation (1988-1989)

Regulation

• California Diesel Fuel Regulations (PDF-100k), (DOC-149k)
• Importer's Reporting Form (XLS-52k) (effective May 31, 2006)
• Fuel Test Methods and Site-Specific Test Method Guidelines
• Certified Alternative Diesel Formulations
• Alternative Diesel Verification

Other Information

• Workshops / Meetings
• Contacts
• Formal Rulemaking Documents
• Letter to U.S. EPA about improving diesel standards (PDF)
• Diesel Fuel Effects on Locomotive Exhaust Emissions (PDF)
• Diesel Fuel Comparison Study
• Locomotive Fuel Effects Study: Particulate Size Characterization (PDF)

Related Links

• Gasoline / Diesel Price and Supply Status
• ARB Fuels Enforcement
• U.S. EPA Diesel Webpage
• ARB Mobile Source Locomotive Page
• Toxic Air Contaminant Emissions from Diesel-Fueled Engines
• Biodiesel
• School Bus Idling Limit Airborne Toxic Control Measure
• Diesel Certifications, Verifications and Other Links
• Particulate Emissions from Diesel-Fueled Engines as a Toxic Air Contaminant