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You’re running a business, not playing catch-up with California emissions regulations. When your heavy-duty trucks need CARB compliance testing, you need it done right the first time so your registration doesn’t get blocked and your drivers aren’t stuck on the shoulder explaining why they can’t produce a Clean Truck Check certificate.
This applies to diesel trucks model year 2013 or newer with a GVWR over 14,000 pounds. If that’s what you’re operating in California, you’re required to test every six months starting this year. By October 2027, that jumps to quarterly testing.
The DMV will hold your registration if you’re not compliant. Roadside sensors flag high-polluting vehicles. Freight facilities can turn you away at the gate. And if you get a Notice to Submit to Testing, you’ve got 30 days to show passing results or face fines that start at $10,000 per vehicle per day and can climb to $75,000. That’s not a scare tactic. That’s the actual penalty structure from CARB.
We handle OBD emissions testing for trucks that fall under California’s Clean Truck Check requirements. You show up, we run the test using CARB-certified equipment, and you get your certificate uploaded to the state database. If your truck passes, you’re good for another six months. If it doesn’t, you know exactly what needs fixing before you’re back on the road.
We focus exclusively on CARB compliance for heavy-duty diesel trucks equipped with OBD systems. That means 2013 and newer engines over 14,000 pounds GVWR. We don’t test passenger cars, light-duty trucks, or older diesel engines without OBD. We stay in our lane because that’s where the regulations are strictest and where most shops either don’t have the right equipment or don’t want to deal with the liability.
Eastvale sits right in the middle of Southern California’s logistics corridor. You’ve got access to I-60, proximity to the Ports of Long Beach and Los Angeles, and a concentration of trucking companies that rely on staying compliant to keep contracts and avoid costly violations. We’re here because the demand is here and because this market needs a shop that understands what’s at stake when a truck can’t pass emissions testing.
We’re CARB credentialed, which means we passed the state exam and maintain certification to perform Clean Truck Check testing. Our equipment is CARB-certified. Our results feed directly into the CTC-VIS database that CARB and the DMV use to verify compliance. You’re not getting a piece of paper that may or may not hold up during an inspection. You’re getting an official record that shows up in the state system the moment your test is complete.
You bring your truck to our facility in Eastvale, CA. We verify that it’s a 2013 or newer diesel engine with a GVWR over 14,000 pounds, because that’s the only type of vehicle we’re certified to test under CARB’s Clean Truck Check program. If your truck is older or lighter, we’ll tell you upfront that we can’t help you. No wasted time.
Once we confirm eligibility, we connect to your truck’s OBD system using CARB-certified diagnostic equipment. The test pulls data directly from your engine’s onboard sensors to measure emissions performance. This isn’t a visual inspection or an opacity test. It’s a digital scan that checks whether your truck’s emissions control systems are functioning within California’s limits.
The test takes about 30 to 45 minutes depending on the truck. If everything checks out, you pass. We upload your results to the state’s CTC-VIS database, and you can download your certificate immediately. That certificate is what you’ll show during roadside inspections or if a freight facility asks for proof of compliance.
If your truck doesn’t pass, we’ll give you a detailed breakdown of what failed and what needs to be repaired. You’ll need to get those repairs done, then come back for a retest. CARB doesn’t allow credentialed testers to perform repairs on the same vehicle they test, so we can’t fix it for you. But we can tell you exactly what’s wrong so you’re not guessing or paying for unnecessary work.
Your compliance is valid for six months from the date of your passing test. You’ll need to come back before that window closes to stay current. Miss that deadline, and you risk a registration hold or worse.
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You’re paying for a CARB-certified OBD emissions test that meets California’s Clean Truck Check requirements for heavy-duty diesel trucks. That includes the diagnostic scan, the official certificate, and direct reporting to the state database. You’re also paying for the expertise to interpret the results and explain what they mean for your truck’s compliance status.
This service is specific to Eastvale, CA, but your truck doesn’t have to be registered here. If you operate in California, you’re subject to CARB regulations no matter where your truck is plated. That’s why out-of-state operators who run routes through California still need to comply. Eastvale’s location makes it a convenient testing point for fleets moving through the Inland Empire or servicing the LA metro area.
The annual compliance fee for 2025 is $31.18 per vehicle, paid directly to CARB. That’s separate from the testing fee. You’ll also need to factor in the cost of any repairs if your truck doesn’t pass on the first attempt. Downtime for a failed test can run anywhere from $300 to $900 per vehicle depending on how long it takes to get back on the road.
Starting in October 2027, testing frequency increases from semi-annual to quarterly. That means four tests per year instead of two. If you’re managing a fleet, that’s a scheduling and cost consideration you need to plan for now. The sooner you build compliance testing into your regular maintenance cycle, the less disruptive it’ll be when the quarterly requirement kicks in.
One more thing: roadside sensors are actively monitoring emissions in California. If your truck gets flagged, you’ll receive a Notice to Submit to Testing. You’ve got 30 days to provide passing results. If you ignore it, the penalties start immediately and they’re not negotiable. This isn’t something you can put off or hope goes away.
We only test diesel trucks that are model year 2013 or newer and have a gross vehicle weight rating over 14,000 pounds. These are the trucks equipped with OBD systems that fall under California’s Clean Truck Check requirements. If your truck is older than 2013 or weighs less than 14,000 pounds GVWR, it doesn’t qualify for the type of testing we’re certified to perform.
This is a hard line because CARB has different testing protocols for different vehicle classes. Older trucks without OBD systems require opacity testing or visual inspections, which are separate processes that require different equipment and certifications. We focus exclusively on OBD-equipped heavy-duty vehicles because that’s where the regulatory requirements are most stringent and where the penalties for non-compliance are highest.
If you’re not sure whether your truck qualifies, check your registration or your door placard for the model year and GVWR. If it’s a 2013 or newer diesel over 14,000 pounds, we can test it. If it’s not, we’ll tell you upfront and save you the trip.
Right now, you need to test every six months. That’s the semi-annual requirement that went into effect in January 2025 for OBD-equipped heavy-duty trucks. Your compliance certificate is valid for six months from the date of your passing test. Once that window closes, you need to test again to stay current.
In October 2027, the frequency increases to quarterly testing. That means four times per year instead of two. CARB is phasing this in to tighten emissions monitoring for heavy-duty vehicles operating in California. If you’re managing multiple trucks, you’ll want to stagger your testing schedule so you’re not bringing your entire fleet in at once every few months.
Missing a testing deadline can trigger a registration hold from the DMV. That means your truck can’t be legally registered or operated in California until you provide proof of compliance. If you’re caught operating a non-compliant vehicle, the fines start at $10,000 per vehicle per day. That’s not a worst-case scenario. That’s the standard penalty structure, and it escalates quickly if you don’t resolve it.
If your truck fails, you’ll get a detailed report that shows exactly what part of the emissions system didn’t meet California’s standards. That could be a faulty sensor, a problem with your diesel particulate filter, an issue with your selective catalytic reduction system, or something else in your emissions control setup. The OBD scan pulls data directly from your truck’s computer, so the failure points are specific, not vague.
You’ll need to take that report to a qualified repair facility and get the issues fixed. CARB regulations prohibit the same shop that performs your compliance test from doing the repairs, so we can’t fix it for you. But we can explain what the failure codes mean and what kind of repair you’re likely looking at.
Once the repairs are done, you come back for a retest. If your truck passes the second time, you’re compliant and your certificate gets uploaded to the state database. If it fails again, you’ll need to dig deeper into what’s causing the problem. Some trucks have underlying mechanical issues that aren’t immediately obvious, and those can take multiple attempts to resolve. The key is not to ignore a failed test. Every day you operate a non-compliant truck in California, you’re risking fines and a registration block.
Yes. If your truck operates in California, you’re subject to CARB regulations regardless of where it’s registered. That includes out-of-state operators running routes through California or servicing customers in the state. CARB’s authority extends to any heavy-duty vehicle operating on California roads, not just vehicles with California plates.
This catches a lot of interstate operators off guard because they assume state-specific emissions rules only apply to in-state registrations. That’s not how it works in California. If you’re moving freight through the state, picking up or delivering loads here, or using California highways as part of your route, your truck needs to meet CARB’s Clean Truck Check requirements. That means semi-annual testing starting in 2025 and quarterly testing starting in October 2027.
Roadside inspections don’t differentiate between California-registered trucks and out-of-state trucks. If you get pulled over and can’t produce a valid CARB compliance certificate, you’re subject to the same penalties as an in-state operator. Freight facilities and ports can also deny entry to non-compliant vehicles, which means you could show up to pick up a load and get turned away at the gate. If you operate in California with any regularity, compliance testing isn’t optional.
The actual test takes about 30 to 45 minutes depending on your truck. That includes connecting to your OBD system, running the diagnostic scan, and uploading the results to the state database. If your truck passes, you can download your certificate right away and you’re done. If it doesn’t pass, we’ll spend a few extra minutes walking you through the failure report so you understand what needs to be fixed.
You don’t need an appointment, but calling ahead can help you avoid waiting if we’re busy. Eastvale’s location in the middle of Southern California’s logistics corridor means we see steady traffic from fleets and owner-operators who need testing done quickly. The more trucks on the road, the more demand there is for compliance testing, especially as deadlines approach.
Plan for about an hour total when you factor in paperwork and any questions you might have about the process. If you’re bringing multiple trucks, we can usually move through them faster once we’ve got the first one set up. The key is making sure your truck is ready to test when you arrive. That means no active check engine lights for issues unrelated to emissions, no obvious mechanical problems, and your OBD system functioning properly. If something’s wrong with your truck’s computer, we won’t be able to pull the data CARB requires, and you’ll need to get that fixed before we can test.
The DMV will place a registration hold on your truck if you’re not compliant. That means you can’t renew your registration until you provide proof of a passing Clean Truck Check test. If you’re caught operating a non-compliant vehicle, CARB can fine you $10,000 per vehicle per day. That fine can escalate to $75,000 per day depending on the severity of the violation and whether it’s a repeat offense.
If you receive a Notice to Submit to Testing from CARB, you have 30 days to provide passing results. Miss that deadline, and the fines start immediately. There’s no grace period, no warning, and no negotiating. CARB takes heavy-duty vehicle emissions seriously because trucks are one of the largest sources of diesel particulate matter and NOx emissions in California. The penalties are designed to be severe enough that non-compliance isn’t worth the risk.
Beyond the fines, non-compliance can cost you in other ways. Freight facilities and ports can deny entry to trucks without valid CARB certificates. That means you could lose a load, miss a delivery window, or get dropped from a contract if you can’t prove compliance. Roadside inspections can pull you off the road until you resolve your status. And if you’re an owner-operator, a registration block means your truck isn’t generating revenue until you get compliant. The cost of testing is a fraction of what you’ll pay if you ignore it.
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