At Bay Area Mobile Diesel Testing LLC, we help fleet owners stay compliant with California’s Clean Truck Check requirements. We provide mobile, on-site testing and include full CARB Clean Truck Check account management at no additional charge. We are a CARB-credentialed “Mobile” Clean Truck Check service for emissions compliance testing for heavy-duty vehicles, and capable of OBD and Opacity/OVI testing. ​We are a mobile service that will come to you and conduct Clean Truck Check services to keep you CARB compliant with the California Clean Truck Check program. We keep our customers well informed of upcoming tests required for your vehicles so you do not have to worry about upcoming deadlines, and we work around your schedule to make the process as easy as possible.

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Beyond testing, we manage the compliance process for you — monitoring deadlines, handling CARB communications, submitting required forms and test results, and paying compliance fees on your behalf ( simply added to the bill with no markup). For fleets we manage, we proactively reach out to schedule testing well before due dates to prevent lapses in compliance.​ Our focus is accuracy, reliability, and long-term compliance management, so you can stay focused on running your business while we ensure your trucks remain compliant and on the road.