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Links to Other Sites

  • On-Board Diagnostics
    The following gives information on what to do when the "Check Engine" light comes on, how it works and how the diagnostic system is related to emissions.
    • EPA Fact Sheet - "Frequently Asked Questions About On-Board Diagnostics" (PDF)
  • Fuel Economy Site - This site has information on gas mileage, fuel costs, greenhouse gas emissions for new and used cars. Find tips on how to improve gas mileage.
  • Car Care Council - Educating motorists about the importance of maintenance, repair and enhancements for safer, cleaner, better performing vehicles.
  • Air Quality Partnership - Program involved in reducing ground-level ozone and fine particulate matter. See how you can take action!


DEP Bureau of Air Quality