Simple, upfront pricing
No surprise fees. The price you see is the price you pay — per vehicle, at your location. Fleet discounts available.
Standard rates
Per vehicle, at your yard or jobsite. Includes CARB submission paperwork.
OBD Test
On-board diagnostic Clean Truck Check for most 2013+ diesel trucks and buses.
Book OBDOVI (Smoke) Test
SAE J1667 smoke opacity test for pre-2013 engines and non-OBD vehicles.
Book OVIMotorhome OBD
OBD Clean Truck Check for motorhomes and RVs with 2013+ diesel engines.
Book MotorhomeMotorhome OVI
Smoke opacity test for motorhomes and RVs with pre-2013 diesel engines.
Book MotorhomeFleet & multi-truck discounts available — ask for a quote.
Switch & Save — 50% off your first test
Already using another tester? Switch to NorCal CARB Mobile and your first test is half price:
NorCal Family — Full Care
We handle your CARB compliance end-to-end: vehicle registration, CTC-VIS deadline monitoring, reminders, and on-site testing. You never call CARB.
CARB's annual compliance fee (paid through CTC-VIS, per vehicle) + $40/year to us. Testing still at standard rates per visit.
Ask about Full CareHow we compare
NorCal CARB Mobile vs. driving to a stationary testing center.
| Feature | NorCal CARB Mobile | Stationary testing center |
|---|---|---|
| Comes to your yard | Yes | No — you drive to them |
| OBD price | $75 | $75–$125 |
| OVI (smoke) price | $199 | $175–$300+ |
| Wait time | None — scheduled | Walk-in: 30–90 min |
| Fleet testing | All trucks tested on-site | Drive each truck separately |
| Saturday appointments | Yes | Varies |
| CARB paperwork filed | Included | Usually included |
| Downtime per truck | ~15 minutes | 2–4 hours (drive + wait) |
Pricing is always subject to change due to matters out of our control.
Ready to get your trucks tested?
Book mobile Clean Truck Check testing anywhere in Northern California. Same-week and Saturday appointments available.