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Starting January 1, 2025, your 2013 or newer diesel truck needs semi-annual emissions testing. Miss it, and you’re looking at DMV registration blocks that stop your operations cold. Fines start at $1,000 and can hit $10,000 per vehicle per day.
You can’t afford to wait until the last minute. The testing window opens 90 days before your deadline, which means you have time to get it done right without scrambling.
We handle the OBD testing using CARB-approved equipment. We’re credentialed, we know the CTC-VIS system, and we can help you set up your account if you haven’t already. You get your results immediately, uploaded to the state system the same day.
Your trucks stay on the road. Your registration stays clean. Your business keeps moving.
We’re based right here in La Quinta, serving the Coachella Valley’s trucking and logistics community. We’re not a mobile unit that shows up whenever. We’re a full-service smog and emissions facility with the equipment, credentials, and experience to handle both standard smog checks and the newer Clean Truck Check requirements.
We’ve been testing vehicles in this area long enough to know what fleet operators and owner-operators deal with. The regulations are confusing. The deadlines are tight. The penalties are brutal.
That’s why we focus on making this process as straightforward as possible. You bring your truck in, we run the test, and you leave with proof of compliance. No drama.
First, we verify your truck qualifies. That means it’s model year 2013 or newer and has a gross vehicle weight rating over 14,000 pounds. If it’s older or lighter, this test doesn’t apply.
Next, we connect to your truck’s OBD system using our CARB-certified diagnostic equipment. For 2013+ diesel engines, we’re pulling data through the J1939 or J1979 connector. The system checks your emissions controls, readiness monitors, and fault codes.
The test takes about 30 minutes in most cases. If your truck passes, we upload the results directly to the CTC-VIS system that same day. You’ll get a certificate showing you’re compliant for the next six months.
If there’s an issue, we’ll tell you exactly what failed and what needs to be fixed. No guessing. No vague explanations. Just clear information so you can decide your next move.
Ready to get started?
California’s Clean Truck Check program targets the 3% of vehicles responsible for over half the state’s smog-causing pollution. That’s why CARB is requiring semi-annual testing for heavy-duty trucks with 2013 and newer engines.
In the Coachella Valley, this affects every fleet operator, owner-operator, and diesel motorhome driver with a qualifying vehicle. You’re required to test twice a year, and you can submit passing results up to 90 days before your deadline.
The testing itself is OBD-based, which means we’re checking your onboard diagnostics system for emissions-related faults and monitor readiness. If your check engine light is on or your monitors aren’t ready, you won’t pass.
Here’s what matters most: this isn’t optional. Non-compliance means registration holds, operational shutdowns, and fines that start at $1,000 and scale up fast. The state estimates this program will prevent thousands of deaths and hospitalizations by 2050, so enforcement is serious and ongoing.
No. The Clean Truck Check program only applies to trucks with model year 2013 or newer diesel engines. Older trucks don’t fall under this requirement.
If your truck is 2012 or earlier, you’re not subject to the semi-annual OBD testing that starts in 2025. However, you may still need to comply with other CARB regulations depending on your vehicle type and how it’s used.
The 2013 cutoff exists because that’s when OBD systems became standard in heavy-duty diesel engines. The testing relies on pulling data from those onboard diagnostics, which older trucks simply don’t have in the same format.
Twice a year. Semi-annual testing is required for all qualifying vehicles, starting January 1, 2025.
Your specific deadlines depend on your vehicle’s registration and compliance schedule. You can submit passing test results up to 90 days before your deadline, which gives you a three-month window to get it done without rushing.
Missing a deadline triggers a registration hold with the DMV. That means your truck can’t be registered or re-registered until you’re compliant. If you’re caught operating a non-compliant vehicle, fines start at $1,000 per vehicle and can reach $10,000 per day depending on the violation.
You’ll need to fix whatever caused the failure before you can pass and get your compliance certificate.
Common failure reasons include active fault codes, a check engine light, or readiness monitors that aren’t set. Sometimes it’s a sensor issue. Sometimes it’s an actual emissions system problem like a failed DPF or EGR valve.
We’ll give you a detailed report showing exactly what failed. From there, you can take it to your mechanic or bring it back to us for repairs if we’re able to handle it. Once the issue is fixed, you’ll need to retest. There’s no penalty for failing the test itself, but you can’t get your compliance certificate until your truck passes.
Yes, but we can help you with that. The CTC-VIS system is how CARB tracks compliance for the Clean Truck Check program.
If you don’t have an account yet, you’ll need to create one before your test results can be uploaded. It’s a free online system, and setup takes about 10 minutes. You’ll need your vehicle information, VIN, and registration details.
We can walk you through the process when you come in, or you can set it up ahead of time on CARB’s website. Once your account is active, we upload your passing test results directly into the system. You’ll be able to log in anytime to check your compliance status and download certificates.
You can get tested at any CARB-certified Clean Truck Check facility in California. Location doesn’t matter as long as the tester is credentialed and using approved equipment.
That said, going local has advantages. You’re not driving hours out of your way. If there’s an issue, you’re close enough to come back without losing a full day. And if you need help with the CTC-VIS system or have questions about your compliance schedule, it’s easier to get answers face-to-face.
We’re located in La Quinta, which makes us accessible for fleets and owner-operators throughout the Coachella Valley. Same-day and next-day appointments are usually available, so you’re not waiting weeks to get compliant.
Trucks older than model year 2013 are exempt. So are trucks with a GVWR under 14,000 pounds, even if they’re newer.
Beyond that, certain specialty vehicles and government-owned trucks may have exemptions, but those are rare. If your truck operates in California and meets the weight and year requirements, you’re almost certainly subject to testing.
Out-of-state trucks that operate in California also need to comply. The rules apply based on where the truck is used, not where it’s registered. If you’re running freight through California with a qualifying truck, you need a Clean Truck Check certificate.
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