Our Services
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At Northern California Diesel Testing, we specialize in bringing professional CARB testing directly to your location. Our mobile testing service covers both OBD and Smoke Opacity testing for single vehicles or entire fleets, and while we're based in the Bay Area, we proudly serve clients throughout Northern, Central, and Southern California. We also do OBD and OVI Diesel Compliance testing for MOTORHOMES!
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Our service is designed to be flexible and convenient for every client, whether you operate a single vehicle or manage a large fleet. We understand that every operation is different, which is why we customize our testing schedule to fit your needs. As your statewide testing partner, you only need one vendor for all your vehicles, simplifying your compliance management significantly. California SB 210 started last year and bi-annual and annual (non-commercial) testing started this year, so stay on top of it - set up your CARB CTC account and make an appointment to get your vehicle tested with mobile convenience.
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CARB Compliance
Our certified mobile testing service keeps your fleet CARB compliant without the hassle of visiting a testing station. We bring professional OBD and smoke opacity testing directly to your location, saving you time and keeping your vehicles on the road. Whether you need testing for one truck or an entire fleet, we work around your schedule to minimize interruptions to your operations.
On-Site Testing
We bring all required CARB testing right to your location - your yard, truck stop, or anywhere that works for you. Our mobile service means no lost driving time and no wasted trips to testing stations. We schedule around your operations and get testing done quickly to keep your vehicles moving.

