CARB tester requirements
Becoming a Clean Truck Check tester starts with CARB—not Zurfex. Credentialing ensures inspectors use approved equipment, follow HD I/M protocols, and submit accurate results to CTC-VIS. Zurfex layers marketplace access on top of that foundation.
CARB credentialing essentials
CARB’s Clean Truck Check program credentials private testers who demonstrate training, equipment compliance, and quality assurance processes. Credential categories cover OBD inspections, opacity testing, or both depending on your equipment investment and service model.
Credentialing is renewed on CARB’s schedule and subject to audit. Maintain calibration records, follow official test procedures documented on arb.ca.gov, and stay current with program bulletins—especially as testing frequency increases for the fleet.
Review equipment needs in our equipment guide.
Business & insurance considerations
Most testers operate as LLCs or established repair businesses. Consult your accountant and attorney about entity structure, sales tax, and general liability coverage—especially for mobile work on customer property.
Zurfex may request proof of insurance depending on service type and volume. Fleets increasingly ask for COIs before allowing yard access; having documentation ready speeds enterprise deals.
California business licensing varies by city and county. Milpitas-based testers and statewide mobile operators alike should confirm local requirements independent of CARB credentialing.
Zurfex onboarding checklist
Create a tester account, complete your profile with service ZIP codes and mobile/shop availability, upload CARB credential certificates, and declare OBD and/or opacity capability. Our team reviews submissions before your listing goes live.
After approval, set competitive pricing informed by our earnings guide. Truck owners commonly see tester fees between $60 and $350 per inspection—you choose rates within market norms for your region.
Start signup or return to become a tester overview.