Clean Truck Check Testing
California CARB-mandated emissions compliance testing for heavy-duty diesel vehicles over 14,000 lbs GVWR. Performed mobile at your location with certified equipment.
Services
Mobile CTC testing & compliance — done right, on your schedule.
Certified equipment, accurate testing, and clear guidance — delivered to your yard, jobsite, or driveway.
OBD Testing
Accurate onboard diagnostics testing for model year 2013 and newer diesel engines, with full data submission to CARB's CTC database.
Fleet Compliance Testing
Coordinated on-site testing for commercial fleets — agricultural, construction, delivery, municipal — with minimal disruption to your operations.
Compliance Guidance
Plain-English explanation of California's Clean Truck Check program, testing intervals, exemptions, and what you need to keep your registration in good standing.
Diesel RV Testing
Convenient mobile CTC testing for diesel motorhomes and RVs — no need to drive your coach to a shop.
VIN Verification
DMV-style vehicle identification number verification for registration and titling needs.
Not sure which test you need?
Call Erik directly — he'll walk you through exactly what's required for your vehicle or fleet.