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Talk with the CARB Test Finder team
Questions about finding a tester, Clean Truck Check certification, or your account? Send a message — we respond on business days.
Find the right tester
Need a Clean Truck Check near you? We’ll point you to verified testers by ZIP, vehicle type, and service.
Certification filing help
Get guidance on CTC-VIS paperwork, application steps, and what documents you need before you submit.
Account & booking support
Stuck on a booking, profile, or tester dashboard issue? Reach out and we’ll help you get unblocked.