Mobile CARB Clean Truck Check – Butte , CA

On-Site CARB HD I/M Compliance Testing in Chico, Oroville, Paradise & Surrounding Areas

NorCal CARB Mobile provides mobile Clean Truck Check testing throughout Butte County, California. Whether you operate agricultural equipment in the rice fields east of Chico, run a logging fleet in the Paradise foothills, or manage delivery trucks serving Oroville, we bring certified CARB emissions testing directly to your location. Our mobile service covers OBD testing ($75) and SAE J1667 smoke opacity testing ($250) for diesel vehicles with a GVWR of 14,001 lbs or more.

Text "BUTTE COUNTY" to 916-890-4427 | Call 916-890-4427 | Book online: norcalcarbmobile.com

Why Butte County Needs Mobile OVI & OBD Testing

Butte County's economy relies heavily on agriculture, timber, and construction—industries that depend on diesel-powered vehicles and heavy equipment. Under CARB's Heavy-Duty Inspection and Maintenance (HD I/M) program, every diesel vehicle over 14,000 lbs must pass a Clean Truck Check. For many rural operations in Butte County, the nearest testing facility may be hours away in Sacramento or the Bay Area. Our mobile service eliminates that burden.

Butte County's rural fleet operations are especially reliant on older diesel engines. Pre-2013 engine model year vehicles—common in farm equipment, logging trucks, and legacy haulers—require OVI (Opacity/Visual Inspection) testing using the SAE J1667 snap-acceleration method rather than standard OBD testing. Our certified technicians specialize in J1667 testing for these older diesel engines, providing on-site compliance certificates so your equipment stays legal and operational.

Industries We Serve in Butte County

Agriculture & Rice Farming: Butte County is one of California's top rice-producing counties. Farm trucks, grain haulers, and agricultural equipment operating in the Sacramento Valley need regular CARB compliance testing. We test at your farm, co-op, or grain elevator location.

Timber & Logging: The foothills above Paradise, Magalia, and Forest Ranch support active logging operations. Our mobile testing reaches remote timber sites where conventional testing stations cannot.

Construction & Rebuilding: The ongoing reconstruction efforts in Paradise and surrounding areas following the Camp Fire have brought construction fleets that require CARB compliance. We test at active construction sites throughout the region.

Freight & Distribution: Companies operating along Highway 99 and Highway 70 corridors rely on diesel fleets for distribution. We serve trucking companies, warehouses, and logistics operations in Chico, Oroville, and Gridley.

Butte County Service Areas

We provide mobile CARB Clean Truck Check testing in Chico, Oroville, Paradise, Magalia, Gridley, Biggs, Live Oak, Durham, Thermalito, and all unincorporated areas of Butte County. We also serve neighboring Glenn and Tehama counties by request.

CARB Compliance Resources

Check your vehicle's compliance status at carbcleantruckcheck.app. Learn more about Clean Truck Check requirements: What Is Clean Truck Check? | Do Agricultural Vehicles Need Testing? | CARB J1667 Smoke Testing Explained

Schedule Your Butte County Appointment

Ready to get CARB compliant? Contact NorCal CARB Mobile today. We offer same-week appointments, flexible scheduling for farming and construction operations, and fleet pricing for multi-vehicle testing. Text "BUTTE COUNTY" to 916-890-4427, call 916-890-4427, or book online at norcalcarbmobile.com.

Call 916-890-4427 or click to contact us

NorCal CARB Mobile delivers on-site CARB Clean Truck Check compliance testing across Butte County — including Chico, Oroville, Biggs, Paradise, and more. Our mobile units meet you at your fleet yard, farm, or roadside lot with certified emissions testing that satisfies California CARB regulations.

We Serve These Butte County Communities

  • Chico

  • Oroville

  • Biggs

  • Gridley

  • Paradise

  • Durham

  • Magalia

  • Palermo

Services Offered in Butte County

  • OBD Testing – $75

  • Smoke J1667 Testing – $250

  • RV/Motorhome Emissions Testing – $300

Why Butte County Fleets Choose NorCal CARB Mobile

  • We come to you — save time and stay in operation

  • Certified CARB Clean Truck Check provider

  • Fleet-friendly scheduling and real-time results

  • 24/6 service + Sunday hours (8AM–4PM)

Call us now at 916-890-4427 or book online for fast scheduling anywhere in Butte County.