Mobile Clean Truck Check
in Southern California
OBD testing for 2013+ engines and opacity testing for 2012 and older. Diesel vehicles over 14,000 lbs GVWR. We come to you, file CTC-VIS, and if it fails we diagnose and fix it so it can pass.
Out of CARB compliance?
Mobile service
OBD testing
Opacity testing
English & Spanish
Who needs a Clean Truck Check
Most diesel and alternative-fuel vehicles over 14,000 lbs GVWR that operate in California — including many out-of-state trucks.
Owner-operators
Stay legal without losing a day at a shop.
Fleets
We test multiple trucks at your yard.
RVs
California-registered diesel motorhomes; confirm classification and exemptions.
Out-of-state
If you operate in California, the program still applies.
Some gasoline, historical, military, and zero-emission vehicles may be exempt. Confirm your due dates in CTC-VIS.
Two tests. We do both.
2013 and newer
On-board diagnostic Clean Truck Check for OBD-equipped engines. We connect, capture the data, and file it.
2012 and older
Smoke opacity plus visual inspection for engines that OBD testing does not cover.
How it works
Book
Call or send the form. We match OBD vs opacity to your engine year.
We come to you
Mobile service across LA, Orange, Riverside, and San Bernardino / Inland Empire.
Certified test
CARB-credentialed tester on site. Most visits are under 90 minutes.
CTC-VIS
Passing results are submitted to the CARB CTC-VIS portal.
If it fails
We diagnose CEL, DPF, DEF, and aftertreatment so you can retest.
Regular Clean Truck Check service starts at $150. Contact us to book.
CARB’s separate annual compliance fee is paid to CARB, not to Torque Edge.
Clean Truck Check for fleets: $20/month per truck.
Book a mobile testSouthern California mobile
- Los Angeles County
- Orange County
- Riverside County
- San Bernardino / Inland Empire
Based in Fontana. About an 80-mile service radius. Fleet yards welcome.
We diagnose, fix, and pass the trucks we test.
Other testers leave when the truck fails. That is where we start. CEL, DPF, DEF, NOx, aftertreatment — we find the fault, fix it, and run the Clean Truck Check again until it passes. Cummins, Detroit, PACCAR, International, and most other 14,000+ lb diesel platforms we support daily. If we cannot complete the test on-site, we tell you before we start.
Fast. Precise. No runaround.
The people who show up
Real technicians in Fontana — not a call center. Bilingual English and Spanish.
Vivian
Clean Truck Check
Mobile CARB compliance testing with travel included. Comes to your location, runs the test, and files the result.
Manny
Master Technician
If the truck fails, Manny diagnoses the CEL, DPF, DEF, and aftertreatment so it can pass the retest.
“We had a truck stuck in limp mode 200 miles from the nearest dealer. Torque Edge connected remotely and had us rolling in 45 minutes.”
David K. Owner-operator
“They walked my tech through a DEF dosing unit replacement while monitoring the ECM data live. Incredible service.”
Robert M. Service director
Request mobile service
Contact us during business hours to confirm availability.
FAQ
What is CARB Clean Truck Check?
It is the Heavy-Duty Inspection and Maintenance (HD I/M) program. Subject vehicles must pass periodic emissions tests and stay current in CTC-VIS.
How often do I need testing?
Most subject vehicles test twice per year. CARB specifies quarterly testing from October 2027 for OBD-equipped vehicles, except qualifying agricultural vehicles and California-registered noncommercial motorhomes, which remain annual. Confirm the due dates in CTC-VIS.
OBD or opacity — which do I need?
2013 and newer engines typically need OBD. 2012 and older typically need opacity plus a visual inspection. Tell us the engine year when you book.
What if I fail?
The truck must be repaired and retested. Unresolved failures can lead to DMV registration holds, fines, and enforcement. We can diagnose the fault and retest after the repair.
I am registered out of state. Do I still need this?
Out-of-state commercial trucks may be subject when operating in California. Motorhomes registered outside California are exempt. Check the vehicle classification and CARB requirements before booking.
Do you test diesel RVs?
California-registered diesel motorhomes over 14,000 lbs GVWR may be subject to Clean Truck Check; qualifying noncommercial motorhomes follow an annual schedule. Motorhomes registered outside California are exempt. Confirm the registration and vehicle classification before booking.
What do I need on test day?
The truck on site, a driver or key, and your CTC-VIS account if you already have one. We handle the test and filing.