Hear from Our Customers
You’re not dealing with registration holds at the DMV. You’re not scrambling after getting flagged at a roadside check. You’re not facing fines that can hit $10,000 per vehicle per day.
Your trucks stay on the road. Your compliance deadlines are met before they become problems. Your CTC-VIS submissions go through without issues, and you’ve got proof of a passing test from a CARB credentialed tester when enforcement asks for it.
That’s what matters. Not just passing a test, but knowing your fleet won’t get sidelined by something you could’ve handled in advance. Clean Truck Check compliance became mandatory January 1, 2025, and CARB is actively enforcing it with roadside monitoring devices and license plate readers. If your 2013 or newer heavy-duty truck gets flagged, you’ve got 30 days to submit a passing emissions test—or you’re looking at serious consequences.
We serve commercial fleets and owner-operators throughout Walnut Park and the surrounding Los Angeles County area. We’re CARB credentialed, which means we’ve completed the required tester training and we’re authorized to submit passing compliance tests directly into the CTC-VIS database.
We focus specifically on heavy-duty vehicle compliance for trucks that fall under California’s HD I/M regulations—2013 and newer model years with a gross vehicle weight rating over 14,000 pounds. That’s not every smog shop’s wheelhouse, but it’s ours.
Walnut Park sits in the heart of one of the busiest trucking corridors in California, and we understand what’s at stake when your vehicles need to stay compliant and operational. We’re not here to upsell you or waste your time. We’re here to get your trucks tested, get your results submitted, and keep your operation moving.
First, we verify your truck qualifies—model year 2013 or newer, GVWR over 14,000 pounds. If it doesn’t meet both of those criteria, Clean Truck Check doesn’t apply, and we’ll tell you that upfront.
Once confirmed, we perform the CARB emissions compliance test using the required equipment and procedures. This isn’t a standard smog check. It’s a specific heavy-duty inspection that measures whether your truck meets California’s emissions standards under the HD I/M regulation.
If your truck passes, we submit the results directly to CARB’s CTC-VIS database on your behalf. You can submit a passing test up to 90 days before your compliance deadline, which gives you a buffer if repairs are needed. If your truck doesn’t pass, we’ll explain what’s flagged and what needs to happen next—no runaround, just clear information so you can make a decision.
Your compliance deadlines depend on your vehicle type. Some trucks are on an annual schedule, others are semi-annual—every six months. We’ll walk you through your specific timeline so you’re not guessing.
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You’re getting a compliance test performed by a CARB credentialed tester who’s trained on the current HD I/M requirements. That’s not just a piece of paper—it’s what allows us to legally submit your results into the state system.
You’re also getting direct CTC-VIS database submission. When your truck passes, we handle the reporting so you don’t have to figure out CARB’s online portal or worry about whether it went through. You’ll have documentation of your compliance status, which matters if you’re ever stopped for roadside enforcement or need to prove compliance to the DMV.
In Los Angeles County, where Walnut Park is located, there are thousands of heavy-duty trucks operating daily, and CARB has been actively using roadside emissions monitoring devices and automated license plate readers since January 2023. If your truck gets flagged as a potential high emitter, you’ll receive a Notice to Submit to Testing, and the clock starts ticking. You’ve got 30 days to get a passing test submitted, or you’re facing penalties and possible registration holds.
We also understand that California’s regulations apply to out-of-state trucks operating here, not just California-registered vehicles. If you’re running trucks through California with a GVWR over 14,000 pounds, Clean Truck Check applies to you—even if your plates are from another state.
No. Clean Truck Check only applies to heavy-duty trucks that are model year 2013 or newer and have a gross vehicle weight rating over 14,000 pounds. Both of those conditions have to be met.
If your truck is a 2012 or older model, it’s not subject to Clean Truck Check requirements, even if it’s a heavy-duty vehicle operating in California. The regulation was designed specifically for newer trucks that are equipped with modern emissions control systems.
If you’re not sure what year your truck is or what its GVWR is, bring your registration or VIN and we can verify whether Clean Truck Check applies. We’re not going to test a vehicle that doesn’t need it—that doesn’t help you and it doesn’t help us.
You’re looking at potential fines, DMV registration holds, and enforcement action from CARB. The penalties can go up to $10,000 per vehicle per day for non-compliance, and in 2022 alone, CARB collected over $21 million in penalties related to heavy-duty vehicle violations.
Registration holds are already being placed by the California DMV on vehicles that aren’t compliant with Clean Truck Check, and that includes trucks with CA DMV-exempt plates. If your registration gets blocked, your truck can’t legally operate until you resolve the compliance issue.
CARB is also using roadside enforcement tools like emissions monitoring devices and license plate readers to flag trucks that may have high emissions. If you get a Notice to Submit to Testing, you have 30 days to get a passing compliance test submitted. Missing that window makes things worse, not better. The smartest move is to test within the 90-day window before your deadline so you have time to address any issues if your truck doesn’t pass on the first attempt.
The tester submits the results directly into CARB’s CTC-VIS database. You don’t handle that part yourself, and honestly, you don’t want to. The system is specific, and if something’s entered incorrectly or incomplete, it can cause compliance issues down the line.
When we perform your Clean Truck Check emissions test and your truck passes, we submit the results on your behalf as part of the service. You’ll get documentation showing that the test was completed and submitted, which serves as your proof of compliance.
CARB requires that compliance testing be performed by a credentialed tester who’s completed their online training course and passed the exam with at least 80 percent. That credential has to be renewed every two years. We maintain that credentialing specifically so we can perform these tests and handle the CTC-VIS submissions correctly. It’s one less thing you have to track or worry about, and it ensures your compliance status is accurately reflected in the state system.
It depends on your vehicle type. Some heavy-duty trucks are on an annual compliance schedule, meaning once a year. Others are subject to semi-annual testing, which means every six months—two compliance deadlines per year.
Starting in 2025, vehicles that fall under the semi-annual requirement have two deadlines spaced six months apart. Missing either one puts you out of compliance, so it’s important to know which schedule applies to your truck and when your next deadline is.
Your compliance deadline is tied to your vehicle’s specific information in the CTC-VIS system, and CARB tracks it. You can submit a passing test up to 90 days before your deadline, which is smart if you want to avoid the last-minute rush or if you need time to make repairs in case your truck doesn’t pass. We’ll walk you through your schedule when you come in so you know exactly when you need to test again and can plan around your operation’s demands.
Clean Truck Check still applies. The regulation covers nearly all diesel and alternative fuel heavy-duty vehicles with a GVWR over 14,000 pounds that operate on California public roads and highways—even if they’re not registered in California.
If you’re running trucks through California as part of your route or operation, and those trucks are 2013 or newer with a GVWR over 14,000 pounds, they need to be reported in the CTC-VIS system and compliant before they can legally operate here. That’s true whether your trucks are plated in Nevada, Arizona, Texas, or anywhere else.
CARB’s enforcement doesn’t stop at state lines. They’re using roadside monitoring and license plate readers to identify non-compliant vehicles, and out-of-state trucks are absolutely on their radar. If your truck gets flagged, you’ll receive a Notice to Submit to Testing just like a California-registered vehicle would, and you’ll have the same 30-day window to get a passing test submitted. We work with out-of-state operators regularly, so if you need testing while you’re in the area, we can get you sorted.
Pricing depends on the specific vehicle and testing requirements, so the best way to get an accurate quote is to contact us directly with your truck’s information. We’ll give you a clear number upfront—no surprises, no add-ons you didn’t agree to.
What we can tell you is that the cost of compliance testing is a fraction of what you’d pay in fines or lost revenue from a registration hold or a truck sitting idle because it’s not compliant. CARB penalties can reach $10,000 per vehicle per day, and the DMV will block your registration if you’re out of compliance. One missed deadline can cost you more than a year’s worth of testing.
There’s also a state-mandated Clean Truck Check fee that increased to $31.18 per vehicle as of January 1, 2025. That’s separate from the testing service itself—it’s a CARB program fee that applies across the board. We’ll break down all the costs when you call or come in so you know exactly what you’re paying for and why. Our goal is to keep your trucks compliant and on the road without burning a hole in your budget or wasting your time.
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