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You avoid fines that start at $1,000 per day and can hit $10,000 per vehicle. Your trucks stay registered with the DMV. Your business keeps moving without interruption.
Clean Truck Check compliance isn’t optional anymore. If you’re running 2013 or newer heavy-duty vehicles in California, you’re required to test. Starting in 2025, that’s twice a year. By 2027, it’s quarterly.
Missing a deadline doesn’t just cost you money. It pulls your trucks off the road. Registration gets blocked. Your ability to haul freight in California gets revoked until you’re back in compliance. That’s not a risk worth taking.
We serve commercial fleets in Glendora and across the San Gabriel Valley. We’re certified by CARB to perform Clean Truck Check testing on heavy-duty diesel trucks with OBD systems.
That means we’ve completed the state-required training, passed the credentialing exam, and use CARB-validated testing equipment. We know the regulations, the deadlines, and what it takes to submit passing results that actually count.
Glendora sits right in the middle of major freight corridors. You’re dealing with tight schedules, changing rules, and zero margin for error. We get it because we work with fleet operators every day who are navigating the same thing.
First, we confirm your truck qualifies. This service only applies to model year 2013 or newer with a GVWR over 14,000 pounds. If your truck is older or lighter, it’s not subject to Clean Truck Check requirements.
Next, we connect to your truck’s onboard diagnostics system. We’re scanning for emissions-related faults, readiness monitors, and any codes that would trigger a failure. This isn’t a visual inspection—it’s a data-driven test that CARB reviews electronically.
If your truck passes, we submit the results directly to CARB’s compliance database. You can submit up to 90 days before your deadline, which gives you flexibility to plan around your schedule instead of scrambling at the last minute.
If your truck doesn’t pass, we’ll tell you exactly what’s flagged and what needs to be addressed. You’ll need to get the issue repaired, then come back for a retest. The sooner you know, the sooner you can fix it and stay on schedule.
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You get a full OBD scan using CARB-approved diagnostic equipment. We check readiness monitors, pull diagnostic trouble codes, and verify your emissions system is functioning as required by California law.
We submit your passing test results directly to the state. That’s not something you handle—we take care of the reporting so your truck shows up as compliant in CARB’s system and your DMV registration stays clear.
You also get documentation for your records. Whether you’re an owner-operator or managing a fleet, you need proof of compliance. We make sure you have it.
Here’s what matters for Glendora-based fleets: you’re close to the 210, the 605, and the 10. You’re running routes that cross county lines and state lines. If your trucks aren’t California CARB compliant, you’re not just risking fines—you’re risking your ability to operate in the state at all. That’s why this isn’t something you can put off or skip.
Only heavy-duty trucks with a gross vehicle weight rating over 14,000 pounds and a model year of 2013 or newer are required to comply with Clean Truck Check regulations. This applies whether your truck is registered in California or out of state—if you’re operating in California, you’re subject to the rule.
Older trucks and lighter vehicles aren’t part of this program. The 2013 cutoff exists because that’s when OBD systems became standard on heavy-duty diesel engines, which is what CARB uses to monitor emissions performance.
If you’re not sure whether your truck qualifies, check your registration or the door placard. GVWR and model year are listed there. If you’re over 14,000 pounds and 2013 or newer, you’re in.
It depends on the year. In 2024, you only needed one passing test to establish compliance. Starting in 2025, you’ll need to test twice a year—that’s semiannual testing.
Then, beginning October 1, 2027, the requirement increases to four times per year. That’s quarterly testing for all OBD-equipped heavy-duty vehicles.
The good news is you can submit a passing test up to 90 days before your compliance deadline. That gives you a window to plan around your routes, your maintenance schedule, and your downtime. Don’t wait until the last week—get it done early and avoid the stress.
If your truck fails, you’ll get a report that shows exactly what triggered the failure—usually a diagnostic trouble code or an incomplete readiness monitor. You’ll need to get that issue repaired before you can retest.
Once the repair is done, you come back and we run the test again. If it passes, we submit the results to CARB and you’re back in compliance.
Here’s the part that matters: a failed test doesn’t automatically trigger a fine, but missing your compliance deadline does. So if you fail, don’t ignore it. Get the repair handled and get retested as soon as possible. The longer you wait, the closer you get to penalties, registration holds, and losing your authorization to operate in California.
Yes. Clean Truck Check applies to any heavy-duty truck operating in California, regardless of where it’s registered. If you’re an out-of-state operator hauling freight through California, you’re required to comply.
We’re certified to test and submit results for any qualifying truck—California plates or not. As long as your truck is model year 2013 or newer and over 14,000 pounds GVWR, we can handle your compliance testing.
This is especially important for owner-operators and small fleets based outside California. You might not be familiar with the rules, but CARB enforcement doesn’t care. If you’re caught operating without compliance, the fines are the same whether you’re local or just passing through. Get tested before you cross the state line.
Testing typically takes less than an hour, depending on your truck’s system and whether any issues come up during the scan. It’s not a lengthy process, but it does require the right equipment and a certified tester who knows how to read OBD data correctly.
As for cost, that varies depending on the provider and the specifics of your truck. What you should be thinking about is the cost of not testing—fines start at $1,000 per day per vehicle and can go much higher depending on the violation.
You’re also looking at potential downtime if your registration gets blocked or you’re pulled from CARB’s compliance database. That’s lost revenue, missed loads, and a scramble to get back on the road. The test itself is a small investment compared to what non-compliance will cost you.
Bring your vehicle registration and any documentation that shows your truck’s VIN, model year, and GVWR. We’ll need that information to verify eligibility and submit your results to CARB correctly.
If your truck has had recent repairs related to the emissions system, bring those records too. It helps us understand what’s been done and whether any monitors might still be incomplete, which could affect your test results.
Make sure your truck is in normal operating condition when you come in. If your check engine light is on or you know there’s an emissions-related issue, get that looked at first. A truck with active fault codes won’t pass, and you’ll just end up needing to come back after the repair anyway.
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