Mobile CARB Clean Truck Check across Livermore, Pleasanton, Dublin and Tracy. We test diesel trucks at your yard, warehouse dock or job site on both sides of the Altamont. No travel fees, no station trips.
The Tri-Valley and Tracy sit on the busiest freight gateway between the Bay Area and the Central Valley. We run mobile Clean Truck Check testing across Alameda County (Livermore, Pleasanton, Dublin) and San Joaquin County (Tracy, Mountain House) — along I-580 and I-680 through the valley floor, over the Altamont Pass, and down I-205 to the I-5 junction east of Tracy. With the massive e-commerce and cold-storage warehouses clustered off I-205 and I-580 in Tracy and Mountain House, this corridor never stops moving. We bring the test to where your trucks already park.
If your diesel vehicle has a GVWR over 14,000 lbs, California's Clean Truck Check (HD I/M) program requires periodic emissions testing. Check your VIN status first at carbcleantruckcheck.app, then call us to lock in a time.
Same price whether you're at a Pleasanton yard or a Tracy distribution center — we don't tack on travel fees.
On-board diagnostics test for 2013-and-newer diesel engines. Fast plug-in, results uploaded to CARB.
Opacity / visual inspection tier of Clean Truck Check. Call and we'll confirm the right test for your truck.
Snap-acceleration smoke opacity test for 2012-and-older diesel engines that can't run OBD.
Mobile diesel motorhome testing at your driveway, storage lot or RV park.
Running a warehouse fleet? Call 916-890-4427 for fleet pricing → See the full Clean Truck Check rates.
If your diesel engine is 2013 model year or newer, it has an on-board diagnostics port. We plug in, pull the emissions data and submit it to CARB. Quick and clean — most trucks are done in minutes.
If your engine is 2012 or older, there's no OBD data to read, so it gets a SAE J1667 snap-acceleration smoke opacity test instead. Not sure which applies? Call and read us the engine year — we'll tell you.
The mega-warehouses off I-205 and I-580 in Tracy and Mountain House run around the clock. We test tractors and box trucks at the dock so nothing comes off dispatch.
Regional carriers staging in Tracy and Lathrop for Bay Area delivery routes get tested before the trucks roll out over the Altamont.
Refrigerated fleets serving the distribution hubs along I-205 need compliant reefer tractors. We come to the cold-storage yard.
Wineries and their delivery and equipment trucks across the Livermore Valley wine country get on-site testing — no trip down the hill.
Dublin, San Ramon and Pleasanton keep building. We test dump trucks, water trucks and haulers at the active job site.
Single trucks parked at home in Tracy, Mountain House or Sunol — we'll come to your house or a nearby lot. No fleet required.
Primary cities below, plus the surrounding towns across Alameda and San Joaquin counties. Don't see yours? Call — we likely cover it.
We test 7 days a week, including Saturdays, with early-morning and evening appointments so your trucks aren't sitting idle during a paying shift. For the Tracy distribution centers that run multiple shifts, we'll come during a shift change or dock-down window. Same-week and next-day slots are usually available across the Tri-Valley and Tracy.
That's exactly what we do. We set up at your warehouse and run the trucks back-to-back during a staging or dock-down window, so drivers stay on schedule instead of driving to a station and waiting.
Not at all. We cover Alameda County and San Joaquin County in the same zone, so whether the truck parks in Dublin or Tracy, it's one call and one rate.
Yes — that's the whole point of mobile. We come to your yard in Livermore, Tracy or Mountain House and test the trucks where they stage, so they're compliant before they hit I-580 or I-205.
We cover the neighboring regions too. Jump to the nearest zone:
Call or text to schedule mobile CARB Clean Truck Check testing at your location — Livermore, Pleasanton, Dublin or Tracy. Fleet pricing available.
