★★★★★ 5.0 · 33 Google reviews · Read our Google reviews
Mobile Clean Truck Check — we come to your yard
OBD and OVI testing on-site across Northern California. Call once — we schedule, arrive, test, and handle the paperwork.
NAP: NorCal CARB Mobile · Northern California (mobile) · 916-890-4427
How much
Clear prices per vehicle at your location. No “most common / most thorough” upsell language — just the test you need.
OVI (smoke)
Opacity / smoke test when OBD does not apply (older units, many motorhomes).
Call to bookFleet
5+ trucks one appointment — call for yard rate. First-timer switch offer available.
Call 916-890-4427Fleet & multi-truck discounts available — ask for a quote.
San Diego County: call 916-890-4427 for pricing
Pricing is always subject to change due to matters out of our control.
How mobile testing works
Three steps and you're compliant — usually within the week.
Book in minutes
Call or send a request with your location and how many trucks need testing.
We come to you
Our certified tester arrives at your yard or jobsite — Sacramento to the Bay Area — including Saturdays.
Pass & paperwork
You get your result on the spot and we handle the CARB Clean Truck Check submission.
Trusted by NorCal fleets
★★★★★ 5.0 stars · 33 Google reviews
★★★★★“Tested all six trucks in under two hours. Very professional.”— Google review
★★★★★“Fair price, no upselling, no waiting.”— Google review
★★★★★“Came out on a Saturday before our DMV deadline. Highly recommend.”— Google review
Rather not deal with CARB at all?
NorCal Family — Full Care. We register vehicles, watch CTC-VIS deadlines, remind you, and run mobile tests.
CARB annual fee (CTC-VIS, per vehicle) + $40/year to us. Testing still OBD $75 · OVI $199 · Motorhome $99/$229 per visit.
Call about Full CareNeed a test? One call.
What we do · how much · where we are — then call. Three steps max to a human callback.