Mobile CARB testing across Chico and Butte County

Frequently asked questions

Is Chico within your service radius?

Yes, Chico sits near the outer edge of our 60-mile radius, but we routinely dispatch here for fleet customers and batched individual visits. Schedule typically runs 2 to 3 business days out.

Do you batch Chico stops with other Butte County visits?

Yes. Chico, Oroville, and the surrounding Butte County ag areas are often scheduled on the same dispatch day for efficiency. Tell us when you book and we will try to coordinate.

Can you OVI-test older orchard and timber trucks?

Absolutely. Pre-2013 ag and timber trucks are a common Chico-area use case. We bring the smoke opacity meter and full OVI procedure to your operation.

Does my Chico truck need an OBD or OVI test?

It depends on your engine model year. Diesel engines from 2013 and newer take the electronic OBD test, and 2012 and older engines take the OVI smoke opacity and visual inspection. We are credentialed for both and bring the right equipment based on the engines you tell us about when booking your Chico visit.

How much does CARB Clean Truck Check testing cost in Chico?

There are two parts. CARB charges an annual compliance fee of $32.13 per vehicle in 2026, paid to the state. Separately, you pay for the test itself, which depends on the test type and vehicle count. Mobile pricing is consistent across our coverage area, and fleets scheduling several trucks in one visit qualify for volume rates. Call (916) 538-7777 for a quote.

How fast does a Chico test clear my DMV registration hold?

For 2013 and newer engines passing the OBD test, we upload results during the visit and CARB releases compliance to the DMV the same business day in most cases, so a Chico-registered rig can come off its hold within hours. OVI results take several business days for CARB to process.

What happens if my Chico truck fails the test?

A failed test carries no fine by itself, but your DMV hold stays until you repair the issue and pass a retest. We tell you exactly what failed, point you to the specific OBD trouble code or OVI finding, and can recommend trusted diesel repair shops in the Chico and Butte County area. Once the fix is done, we come back and retest.

Are you actually CARB credentialed?

Yes. We are credentialed by the California Air Resources Board for both OBD testing and OVI opacity testing, and our credentials are verifiable on the CARB Clean Truck Check program registry. We provide credential numbers on request before any service visit.