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On-Board Diagnostics (OBD)

OBD Logo - Check Engine Light State Agencies

OBD offers significant benefits to state and local agencies working to improve air quality through vehicle inspection and maintenance programs. By providing technicians with timely and accurate emissions data and helping vehicle owners better maintain their vehicles, OBD plays a key role in helping states meet national air quality standards.

Whether your state has already implemented OBD checks or is planning to do so in the near future, this Web site will provide you with a wealth of information, including:

Related Links: exit EPA

Equipment and Tool Institute
Learn more about Controlled Area Network (CAN) equipped vehicles.

OBD Clearinghouse: Weber State University's Center for Automotive Science and Technology
Learn the latest on state and local OBD implementation, technician training opportunities, state outreach materials, and more!

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
For more: About Us | Get E-mail Updates | Browse the A to Z Subject Index.

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