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Your truck sits because the DMV won’t renew your registration. You’re losing revenue by the day. CARB’s Clean Truck Check program isn’t optional anymore—it’s enforced, and the consequences hit fast.
If your diesel truck is model year 2013 or newer and weighs over 14,000 pounds GVWR, California requires you to report your vehicle, pay annual fees, and pass emissions testing. Miss any of those steps and your registration gets held. Your truck stays parked.
We handle the testing piece. You show up, we run the CARB-certified emissions test using approved OBD devices, and you get documentation proving compliance. That’s what keeps your trucks moving and your business operating without interruption. No registration drama. No scrambling to find a credentialed tester at the last minute.
We operate right here in Corona, CA, where the 91 and 15 freeways intersect and heavy-duty trucks move through daily. We’re not a mobile service bouncing around—we’re a fixed location you can count on.
Corona sits in the heart of Southern California’s logistics corridor. Trucks running between LA, Ontario, Riverside, and San Bernardino pass through here constantly. That means CARB compliance isn’t theoretical for local operators—it’s a daily reality that affects your ability to work.
We focus exclusively on the Clean Truck Check requirements for heavy-duty vehicles. That’s model year 2013 and newer, over 14,000 pounds GVWR. If your truck doesn’t fit that description, this service doesn’t apply. We’re clear about that because wasting your time doesn’t help anyone.
You bring your truck in. We verify it meets the requirements—model year 2013 or newer, over 14,000 pounds GVWR. If it doesn’t, we’ll tell you upfront that this service doesn’t apply to your vehicle.
We connect CARB-certified OBD diagnostic equipment to your truck’s onboard system. The test checks emissions data directly from your vehicle’s computer. This isn’t a visual inspection or a tailpipe test—it’s a data pull that CARB uses to verify your truck meets California’s clean air standards.
Once the test completes, you get documentation showing your results. If you pass, that report satisfies CARB’s Clean Truck Check requirement and prevents DMV registration holds. If there’s an issue, we’ll explain what the data shows so you know what needs attention. The whole process typically takes less than an hour, and you walk out knowing where you stand with compliance.
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California’s Clean Truck Check program has three parts: vehicle reporting, annual fee payment, and emissions testing. We handle the testing. You’re responsible for the reporting and fees through CARB’s online system.
Testing became mandatory on October 1, 2024. Any compliance deadline after January 1, 2025 requires you to submit passing test results. CARB enforces this through DMV registration holds, roadside monitoring devices, and license plate readers that flag high-emission vehicles. If they send you a Notice to Submit to Testing letter, you have 30 days to get tested and submit results.
Corona’s location in Riverside County puts you in a region with heavy enforcement. The California Highway Patrol and CARB Enforcement conduct field inspections at weigh stations along the 91 and 15. Non-compliant trucks get flagged. Ports and railyards can deny entry to vehicles that don’t meet requirements. For commercial operators, the stakes are higher—shippers face fines up to $10,000 per year for each non-compliant carrier they hire. That means your compliance status affects your ability to get contracts, not just your registration.
If your diesel truck is model year 2013 or newer and has a gross vehicle weight rating over 14,000 pounds, yes—you need CARB compliant testing if it operates on California public roads. That includes out-of-state trucks that drive through California, even occasionally.
The Clean Truck Check program applies to heavy-duty vehicles, not regular passenger cars or light trucks. If your truck is older than 2013 or weighs less than 14,000 pounds GVWR, this requirement doesn’t apply to you. CARB is specific about those cutoffs.
Operating without compliance leads to DMV registration holds. That means you can’t renew your registration until you complete all three requirements: vehicle reporting, annual fee payment, and passing emissions testing. Your truck stays off the road until you’re compliant.
Testing costs vary by provider, but expect to pay between $150 and $300 for a CARB-certified Clean Truck Check test. That’s separate from the annual CARB compliance fee, which you pay directly to the state.
The test itself uses specialized OBD equipment that connects to your truck’s onboard diagnostic system. It’s not the same as a standard smog check for passenger vehicles. The equipment and certification requirements are different, which is why the cost is higher.
Compare that to the cost of non-compliance: DMV registration holds that take your truck out of service, potential fines if you’re caught operating without compliance, and lost contracts if shippers won’t hire non-compliant carriers. Testing is the cheaper option by a long shot.
You need a CARB-credentialed tester who completed the required training and passed the state exam. Not every smog check station offers Clean Truck Check testing because it requires specific certification and equipment for heavy-duty vehicles.
We provide CARB compliant testing in Corona, CA for trucks that meet the requirements—model year 2013 or newer, over 14,000 pounds GVWR. We’re located near the 91 and 15 freeways, which makes us accessible for local fleets and trucks passing through the Inland Empire.
You can also search CARB’s online database of credentialed testers if you need to compare options. Just make sure whoever you choose is certified for Clean Truck Check testing specifically, not just regular smog checks. The requirements are different.
If your truck fails, you’ll get a report showing what triggered the failure. Usually it’s an issue with the onboard diagnostic system, emissions control components, or sensor malfunctions. The test pulls data directly from your truck’s computer, so failures point to specific system problems.
You’ll need to get the issue repaired before you can retest and pass. That might mean taking your truck to a diesel mechanic who can diagnose and fix emissions-related problems. Once repairs are complete, you come back for another test.
CARB gives you 30 days to submit passing results if you received a Notice to Submit to Testing letter. If you’re facing a compliance deadline, don’t wait. Get tested early so you have time to address any failures without risking registration holds or penalties.
Yes. If your diesel truck operates on California public roads—even part-time or just passing through—you’re required to comply with CARB regulations if your vehicle is model year 2013 or newer and over 14,000 pounds GVWR.
California doesn’t exempt out-of-state trucks from Clean Truck Check requirements. CARB uses roadside monitoring and license plate readers to identify high-emission vehicles regardless of where they’re registered. If you’re flagged, you’ll receive a Notice to Submit to Testing and have 30 days to comply.
For truckers based outside California, this means planning ahead. If your routes include California, factor compliance into your operating costs and schedule. Corona’s location near major freight corridors makes it a logical stop for testing if you’re running between Arizona, Nevada, or Northern California.
The actual test takes about 30 to 45 minutes once we connect the diagnostic equipment to your truck. Total time at the shop, including paperwork and vehicle verification, is usually under an hour.
The test is straightforward. We plug CARB-certified OBD devices into your truck’s diagnostic port, pull emissions data from the onboard computer, and generate a report. There’s no disassembly, no tailpipe probes, and no waiting for lab results. You get documentation before you leave.
If you’re on a tight schedule, call ahead to confirm we can accommodate your truck that day. Corona sees heavy truck traffic, especially during peak logistics hours, so planning your visit helps avoid delays. Bring your vehicle registration and any CARB correspondence if you’ve already received notices.
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