NorCal CARB Mobile · Route-based field service

Mobile CARB testing across Napa and Sonoma

We travel to fleet yards, wineries, contractors and equipment locations from Napa and St. Helena to Calistoga and Santa Rosa.

Call 916-890-4427Request a Route Quote

Communities on this route

  • Napa, CA
  • St. Helena, CA
  • Calistoga, CA
  • Yountville, CA
  • American Canyon, CA
  • Santa Rosa, CA
  • Sonoma, CA

Wine-country traffic, access windows and vehicle location can affect routing, so extended-area pricing is confirmed before dispatch.

Pricing for this area

Call for a route quote. Pricing is confirmed from the test type, location, vehicle count, deadline and whether we can group the stop with another trip.

That prevents a distant fleet from being shown a Sacramento-core price that may not apply.

Tell us where the vehicles are

What we handle on site

We confirm the likely test before dispatch and bring the appropriate CARB testing equipment to the vehicle location.

HD-OBD testing

Electronic Clean Truck Check testing for supported OBD-equipped heavy-duty vehicles.

OVI smoke testing

Opacity and visual inspection service for vehicles that require the non-OBD procedure.

Fleet and bus visits

Multiple vehicles can often be tested during one scheduled yard or parking-location visit.

Built for working wine-country fleets

Vehicles in Napa and Sonoma are not always parked beside the highway. Wineries, agricultural operators, contractors and hospitality fleets often need testing arranged around gates, deliveries and working hours.

Tell us where the vehicles are kept and when they are available; we will build the visit around the operation.

Before we schedule

Have the city, vehicle count, engine years and deadline ready. For buses or vehicles parked at different locations, tell us the operating window so we can build the route correctly.

Scheduling, pricing and invoicing are handled by NorCal CARB Mobile at 916-890-4427.

Bay Area testing · California service areas · Request a quote

Planning testing in Napa or Sonoma County?

Call once. We will confirm the vehicles, route, timing and quote.

Call 916-890-4427Request a Callback