Welcome to the California Bureau of Automotive Repair OBD Inspection System (BAR-OIS).

BAR-OIS is a state-of-the-art Vehicle Emissions Test system.

The purpose of this User Guide is to facilitate efficient and successful execution of the tasks related to California vehicle emissions inspections.

This User Guide will enable you to learn and use the BAR-OIS interface and to obtain help for specific topics or areas of the interface where you require more information.