Mobile CARB Clean Truck Check across Oakland, Hayward, Fremont, Union City and San Leandro. We test diesel trucks at your yard, the Port, or your job site. No travel fees, no station trips.
The East Bay moves more diesel freight than just about anywhere in the region. Between the Port of Oakland, the warehouse belt along I-880 (the Nimitz), and the factories down in Fremont, thousands of trucks run hard every day — and every one of them over 14,000 lbs GVWR needs a CARB Clean Truck Check. We bring the test to you across Alameda County: Oakland, San Leandro, Hayward, Union City and Fremont, plus Newark, San Lorenzo, Castro Valley, Alameda, Berkeley and Emeryville.
No driving across town to a station and losing half a day in I-880 or I-580 traffic. You tell us where the truck sits — the Outer Harbor, a 7th Street terminal lot, a distribution dock off the Nimitz, or your Fremont yard — and we show up. Check your VIN status first at carbcleantruckcheck.app, then call to book.
Same price at the Port of Oakland or out in Fremont — no travel fees, no facility charges.
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 drayage or 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. Most newer drayage tractors and box 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.
Container haulers running the Outer Harbor and 7th Street terminals can't afford a wasted dispatch. We test at your drayage yard or a staging lot near the Port between container runs.
The I-880 corridor from Oakland through San Leandro and Hayward is wall-to-wall distribution. We test box trucks and tractors right at the loading dock.
Fremont's auto, EV and electronics plants run parts and freight trucks daily. We come to the Fremont and Newark industrial parks so production never stops.
Dump trucks, water trucks and equipment haulers on East Bay job sites — from Oakland infill projects to the 880/238 interchange work. Tested on-site.
Refrigerated and food-service fleets serving Oakland, Berkeley and Emeryville restaurants and markets stay compliant without leaving the route.
One truck parked at home in Hayward, Union City or Castro Valley? We'll come to your house or a nearby lot. No fleet required.
Primary cities below, plus the surrounding Alameda County towns. Don't see yours? Call — we likely cover it.
We test 7 days a week, including Saturdays, with early-morning and evening appointments so trucks aren't sitting idle during a paying shift. Drayage running early out of the Port or a warehouse on a night dock schedule — tell us when the truck is parked and we'll work around it. Same-week and next-day slots are usually available across the East Bay.
Yes. We test at drayage yards and staging lots around the Port — Outer Harbor, 7th Street and the surrounding terminal areas. Line the trucks up at your yard between container runs and we'll run them back-to-back so nobody loses a turn.
We do. Fremont, Newark and Union City are all in our East Bay zone. We come to the manufacturing yards and industrial parks off I-880 so your parts and freight trucks stay on schedule.
Absolutely. We test your whole fleet in a single on-site visit at your Oakland, San Leandro or Hayward yard — far less downtime than sending drivers to a station one at a time in Nimitz traffic. Call for fleet pricing.
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 — Oakland, Hayward, Fremont, Union City or San Leandro. Fleet and drayage pricing available.
