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California’s Clean Truck Check program started enforcement in 2023, and the penalties for non-compliance are severe. Fines range from $1,000 to $75,000 per vehicle per day depending on the violation. Your registration can be blocked at the DMV, which means your truck sits instead of earning.
You need testing done right, reported correctly, and uploaded to the CTC-VIS system without delays. That’s what we do for heavy-duty diesel and alternative fuel trucks operating in Claremont and throughout California.
Our CARB certified smog check service keeps your 2013 or newer trucks compliant with state regulations. You get same-day results, real-time DMV hold clearing, and documentation you can show during roadside inspections. No surprises, no waiting weeks for paperwork.
We serve Claremont and the surrounding areas with specialized CARB emissions testing for commercial trucks, fleet vehicles, and owner-operators running heavy-duty equipment. We’re credentialed testers who’ve completed CARB’s official training and certification requirements.
Claremont sits in a region with heavy commercial traffic moving through the Inland Empire, which means CARB enforcement is active and roadside inspections are common. You can’t afford to be caught without current compliance documentation.
We focus exclusively on trucks that meet the Clean Truck Check requirements: model year 2013 or newer with a GVWR over 14,000 pounds. If your truck falls outside those specs, this program doesn’t apply to you yet. But if you’re in that range, you’re required to test twice a year minimum, and that frequency is increasing to four times annually by 2027.
First, we verify your truck qualifies under the Clean Truck Check program. That means confirming it’s a 2013 or newer model year and has a GVWR above 14,000 pounds. If it doesn’t meet both criteria, the state doesn’t require this test.
Once confirmed, we perform the required emissions testing using CARB-approved equipment. This includes OBD diagnostics and visual inspections to ensure your truck meets California’s heavy-duty emission standards. The test itself doesn’t take long, but it has to be done correctly because the data goes directly into the state system.
After testing, we upload your results to the Clean Truck Check Vehicle Inspection System in real time. If you had a DMV registration hold due to compliance issues, it clears immediately once you pass. You’ll receive documentation showing you’re current, which you’ll need if you’re stopped during a roadside inspection.
You also need to pay the annual compliance fee, which is $32.13 for 2026. We can walk you through that process or point you to the right portal. The fee and the testing are both mandatory to stay legal.
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California’s Clean Truck Check applies to any heavy-duty vehicle operating on public roads in the state. That includes trucks registered in California and out-of-state trucks that operate here regularly. It covers commercial vehicles, personal trucks over the weight threshold, and government fleets.
Right now, if your truck has a 2013 or newer engine, you’re testing twice a year. But CARB is ramping up enforcement. By 2027, those same trucks will need testing four times a year. The state uses roadside emissions monitoring devices to flag potential high emitters, and if your truck gets flagged, you’ll receive a Notice to Submit to Testing. Ignoring that notice leads to fines and registration blocks.
In Claremont and the broader Inland Empire, enforcement is active because of the high volume of freight and commercial traffic moving through the I-10 corridor. CARB collected $21.5 million in penalties in 2022 alone, so they’re serious about compliance.
Our service makes sure you’re covered. We handle the testing, the reporting, and the documentation. You stay focused on running your business while we keep your trucks legal and on the road.
It depends on the truck’s model year and weight. If your semi truck has a 2013 or newer engine and weighs more than 14,000 pounds GVWR, then yes, it’s required under California’s Clean Truck Check program. This applies whether your truck is registered in California or another state, as long as it operates on California public roads.
Older trucks and lighter vehicles aren’t covered under this regulation yet. The state phased in the program starting in 2023, focusing first on newer, heavier trucks because they represent the bulk of commercial freight emissions. If you’re unsure whether your truck qualifies, check the model year and GVWR on your registration or door placard.
Keep in mind that even if your truck is exempt now, California’s regulations are tightening. The Advanced Clean Trucks rule is pushing manufacturers toward zero-emission vehicles, and compliance requirements will expand over time. Getting familiar with the testing process now saves you headaches later.
Right now, trucks with 2013 or newer engines need testing twice a year. But that’s changing. By 2027, those same trucks will be required to test four times a year. The state is increasing the frequency because they want more data on emissions performance and tighter enforcement of compliance standards.
Each test gets uploaded to the Clean Truck Check Vehicle Inspection System, and your compliance status is tracked by your VIN. If you miss a test or let your compliance lapse, the DMV can place a hold on your registration. That means you can’t renew your tags, and technically, you can’t legally operate the truck on California roads.
The testing schedule is strict, and there’s no grace period if you’re late. CARB’s enforcement team uses roadside monitoring devices to screen for high emitters, and if your truck gets flagged, you’ll be required to submit to testing immediately. Missing that deadline results in fines starting at $1,000 per day and escalating from there.
If your truck fails, you’ll need to get it repaired and retested before you can legally operate it in California. The failure gets reported to the state system, and your compliance status shows as non-compliant. That can trigger a DMV registration hold, and if you’re caught operating a failed truck, you’re looking at fines that start at $1,000 per day and can reach $75,000 depending on the severity.
Most failures come from issues with the OBD system, emissions control equipment, or visible smoke during operation. Sometimes it’s a sensor malfunction or a software issue that’s fixable quickly. Other times, it’s a sign of a bigger problem with the diesel particulate filter or exhaust system.
Once you make the repairs, you come back for a retest. If the truck passes, we upload the new results and your compliance status updates immediately. The key is not to delay. Every day you wait is another day you’re out of compliance and at risk of penalties or enforcement action.
Yes, mobile testing is available for fleets and owner-operators who need on-site service. Bringing the testing to your location saves you time and eliminates the need to take trucks out of service to drive to a testing facility. For businesses running multiple trucks, mobile testing is often the most efficient option.
We bring CARB-approved equipment directly to your yard or facility in Claremont and surrounding areas. The testing process is the same as it would be at a fixed location, and results are uploaded to the state system in real time. You get the same compliance documentation and same-day DMV hold clearing.
Mobile testing works especially well if you’re managing a fleet with tight schedules or if you have trucks that are difficult to move due to load or operational constraints. It’s also a good option if you’re trying to minimize downtime and keep your trucks earning instead of sitting in line at a testing station.
Penalties start at $1,000 per vehicle per day and can go as high as $75,000 per day depending on the violation. CARB doesn’t mess around with enforcement. In 2022 alone, they collected $21.5 million in penalties from non-compliant operators. If your truck is flagged during a roadside inspection and you can’t provide current compliance documentation, you’re getting cited on the spot.
Beyond fines, non-compliance can result in a DMV registration hold. That means you can’t renew your registration, and operating without valid registration is a separate violation that brings additional penalties. Your truck essentially becomes illegal to operate in California until you get compliant.
For commercial operators, the financial impact goes beyond just the fines. Every day a truck sits idle because of compliance issues is lost revenue. If you’re running a tight margin business, a single violation can wipe out weeks of profit. The cost of staying compliant is a fraction of what you’ll pay if you get caught non-compliant.
Yes. If your truck operates on California public roads, it’s subject to Clean Truck Check requirements regardless of where it’s registered. That includes trucks passing through the state, trucks making regular deliveries, and trucks based out of state but working California routes. CARB’s enforcement applies to any heavy-duty vehicle using California highways.
Out-of-state operators sometimes assume they’re exempt, but that’s not how the regulation works. California has the authority to enforce emissions standards on any vehicle operating within state borders. Roadside inspections don’t distinguish between California plates and out-of-state plates. If your truck is flagged as a potential high emitter, you’ll be required to submit to testing.
The compliance process is the same for out-of-state trucks. You need to register your vehicle in the Clean Truck Check system, pay the annual compliance fee, and complete required emissions testing. If you’re running regular routes into California, it makes sense to get tested proactively rather than waiting for enforcement to catch up with you.
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