CTC Tracker
Clean Truck Check compliance tracking for California diesel shops
Track every truck's Clean Truck Check deadline, log OBD and opacity tests with photos, keep records aligned with CTC-VIS, and invoice the customer from the same screen.
- Fleet records with VIN, plate, and CTC due dates
- OBD and opacity (OVI) test logs with photos
- Reminders at 90, 30, and 7 days before each deadline
- Invoices created straight from a logged test
- Compliance status for the whole fleet at a glance
Built around how CARB actually schedules Clean Truck Check
California-plated trucks are scheduled from registration expiration; out-of-state trucks from the last digit of the VIN; motorhomes and agricultural vehicles test annually. CTC Tracker derives the right cadence and the right test method — OBD for 2013 and newer engines, opacity with visual inspection for the rest — the moment you add a vehicle.
Passing tests logged inside the 90-day window roll the deadline forward automatically. Missed deadlines stay flagged as overdue until they are satisfied, so nothing quietly disappears from the board.
Clean Truck Check resources
- Clean Truck Check guideWho must comply, annual fees, testing cadence, and enforcement.
- CTC deadlines & VIN scheduleRegistration-based dates, VIN last-digit months, and the 90-day window.
- OBD vs opacity testingWhich test each truck needs and what a compliant record includes.
- CTC-VIS explainedCARB's system of record and how to keep your shop records in sync.
Who it's for
- Diesel repair shops testing customer fleets
- Owner-operators and small fleets running in California
Free callback
Request a CTC inspection
Leave your number — no account needed. We'll get back to you about your Clean Truck Check testing.
CTC Tracker is an independent tool and is not affiliated with the California Air Resources Board. CTC-VIS remains the official system of record.