Light-Duty Vehicle and Engine Emission Certification

Compliance and Certification | Data | Fact Sheets | Related Links

A comprehensive information source for light-duty vehicle and engine emission certification programs

About Portable Document Format Files

• Manufacturer Guidance Letters-- (1979-present)
• Alternative Fuel Conversions [64K PDF]
• Contact List for Fuel Converters [21K PDF 1 Page]
• New Vehicle Certification Standards -- EPA420-B-00-001 (February 2000)
• Compliance Fees
• Engine Certification (Nonroad & Heavy-Duty Highway)
• Test Procedures

• CFEIS - Certification & Fuel Economy Information System
• In-Use Vehicle Emission Testing & Recall (Including 1991-1999 Annual Recall Reports)
• Light-Duty Annual Certification Test Result Reports & Data
• Fuel Economy Guide and Test Results

• What You Should Know about Using, Installing, or Buying Aftermarket Catalytic Converters   [22K PDF]    [29K WPD]

• EPA tests and certifies fuel cell vehicle:
• Press Release (February 11, 2003)
• "EPA Fuel Cell Testing Facts" (January 2003, EPA420-F-02-055) Fact Sheet on NVFEL's testing of fuel cell vehicles.  15K PDF

• Green Vehicle Guide
• Fuel Economy
• Light-Duty Vehicle Emission Regulations
• Inspection/Maintenance & On-Board Diagnostics (OBD)
• Clean Fuel Fleets (Alternative Fuels, Calif. Pilot Program)
• California Air Resources Board  



• Transportation and Air Quality Issues Contact List