Clean Truck Check for Wineries & Construction Fleets

CARB-Certified Mobile Testing at Your Vineyard, Crush Pad, or Job Site

We come to your property and test your entire diesel fleet — no trucks pulled off the job, no trips to a shop, no lost production.

Serving wineries, vineyards, contractors, and agricultural operations across Napa & Sonoma County.

Schedule Your Fleet Test

Built for Your Industry

🍇 Wineries & Vineyards

From flatbeds and box trucks to diesel tractors and harvest equipment, your operation depends on vehicles that have to stay compliant year-round. We work around your calendar — including the crush — so testing never slows you down.

  • On-site testing at your vineyard or crush pad
  • Flexible scheduling around harvest season
  • Diesel trucks, RVs, and equipment 14,001+ lbs GVWR
  • Same-day CARB certification
  • Discreet, professional service that respects your guests

🏗️ Construction & Contractors

Dump trucks, heavy-duty pickups, water trucks, and haulers all need to pass Clean Truck Check to keep working. We meet your crew at the yard or active job site and get every vehicle certified in one visit.

  • Testing at your equipment yard or job site
  • Whole-fleet visits completed in one trip
  • Minimal downtime — 15-20 minutes per truck
  • Keep your trucks DMV-registered and road-legal
  • Reminders so no compliance window is missed

Why Fleets Choose Mobile Testing

Zero Downtime

Your trucks never leave the property. We test where they're parked, so your crews keep working and your equipment stays productive.

One Visit, Whole Fleet

We test every eligible vehicle in a single trip and submit certifications to CARB the same day — no juggling multiple shop appointments.

Avoid Costly Penalties

CARB fines run up to $10,000 per vehicle per day, plus DMV registration holds. We keep your fleet ahead of every deadline.

CARB-Certified & Local

A fully credentialed tester who knows Napa and Sonoma County, shows up on time, and treats your operation with professionalism.

Fleet Pricing

First Truck

$110

$30 Travel + $80 Test

Additional Trucks

$80

Per truck, same visit

Best Value

Fleet Discount

$80/ea

3+ trucks: Travel fee waived

Fleet Special: With 3 or more trucks, we waive the $30 travel fee entirely. Just $80 per truck — ideal for wineries and contractors testing several vehicles at once.

Schedule Your Fleet Clean Truck Check

Tell us about your fleet and we'll get back to you promptly