CTC-VIS: CARB's Clean Truck Check reporting system

What fleets do in CTC-VIS

• Create a fleet account and add every vehicle by VIN
• Pay the annual compliance fee for each vehicle
• Confirm reported test results and compliance status
• Update vehicle records when units are sold, retired, or added

What testers do in CTC-VIS

Credentialed testers submit OBD or opacity results against the VIN. Until that submission lands, a passing test in your shop's paperwork does not make the vehicle compliant with CARB.

Why you still keep your own records

CTC-VIS tells you the state's view of a VIN. It does not schedule your shop's work, remind you 90 days out, hold the photos from an opacity inspection, or bill the customer. That operational layer is what CTC Tracker provides — and it always defers to CTC-VIS as the authority.

Keeping the two in sync

• Mark each logged test as submitted once it is uploaded
• Record the annual fee payment date per vehicle
• Re-check status in CTC-VIS after any failed test and retest

Related reading: the Clean Truck Check guide and OBD vs opacity testing.