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Mobile Emissions Testing in California

Keeping your fleet moving while meeting strict state regulations is a constant balancing act. At Clean Truck Compliance Solutions, we simplify the process by bringing our service to you. Our mobile emissions testing in California is designed for owner-operators and fleet managers who can't afford to take vehicles out of service or waste fuel traveling to a testing facility.
By performing the Clean Truck Check (HD I/M) at your yard, warehouse, or job site, we ensure your operations remain uninterrupted while you maintain full compliance with CARB.
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Why Choose On-Site Testing

Zero Travel Time: We service your vehicles at your location, whether it's one truck or an entire fleet.
Minimized Downtime: Schedule testing during off-hours or between shifts to keep your drivers on the road.
Expert Guidance: As a veteran-owned business with law enforcement roots, we don’t just run tests; we help you understand the results and stay ahead of upcoming deadlines.
Flexible Scheduling: We adapt to your operational needs, providing the flexibility required for multi-region fleet management.
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Specialized Testing for Every Engine Type

California’s requirements vary based on your vehicle's age and technology. We provide both primary forms of mandatory periodic testing:

On-Board Diagnostic Testing (OBD)

For 2013 and newer diesel engines (and 2018+ alternative fuel engines), we perform on-board diagnostic testing. Using CARB-certified equipment, we plug into your vehicle’s computer to verify that the emissions control systems are functioning correctly. Once the scan is complete, we securely transmit the data directly to CARB for immediate compliance reporting.

Opacity and Visual Inspection Testing (OVI)

Contact Us to Get Started
If you operate heavy-duty diesel trucks or RVs with engine model years 2012 and older, you are required to pass an opacity and visual inspection testing protocol. Our technicians conduct on-site smoke opacity tests and a thorough visual component inspection to ensure no tampering has occurred and that emissions are within legal limits. We provide the necessary reports to CARB to secure your certification.