CARB Compliant Testing in Santa Clarita, CA

Keep Your Heavy-Duty Trucks Legal and On the Road

You need CARB compliant emissions testing for your 2013 or newer diesel trucks over 14,000 lbs GVWR. We handle the testing, reporting, and documentation so you avoid fines and registration holds.

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CARB Emissions Testing Santa Clarita

No Fines, No Registration Holds, No Downtime

If you’re running heavy-duty trucks in California, you already know CARB regulations aren’t optional. What you might not know is how fast non-compliance can shut you down.

CARB can fine you up to $10,000 per vehicle per day. The DMV can hold your registration. Roadside inspections can pull your trucks off the road starting at $300 per violation. And if you miss your 30-day window after receiving a Notice to Submit to Testing, you’re looking at enforcement action that stops your operations cold.

You need Clean Truck Check testing done right, submitted on time, and recorded properly in the CTC-VIS system. That’s what keeps your trucks moving and your business running. Our CARB certified smog check handles the OBD testing for 2013 and newer diesel engines over 14,000 lbs GVWR, transmits results directly to CARB, and gives you the documentation you need to prove compliance.

Heavy-Duty Vehicle Compliance CA

Local Testing That Understands Your Schedule

All SMOG Motors is a STAR-certified facility serving Santa Clarita’s trucking industry. We’re credentialed by CARB to perform Clean Truck Check testing, which means we’ve completed the required training, passed the exam, and use certified OBD testing equipment.

Santa Clarita has over 1,100 trucking companies operating in construction, logistics, manufacturing, and heavy haul. You’re dealing with tight schedules, expensive equipment, and regulations that keep changing. We get it. That’s why we focus on getting you tested, compliant, and back on the road without the runaround.

We’re not mobile, but we’re reliable. You know where to find us, and you know we’ll be here when you need your next test.

CARB Diesel Compliance Process

Here's Exactly What Happens During Your Test

You bring your 2013 or newer diesel truck with a GVWR over 14,000 pounds to our facility. This service only applies to trucks that meet both those requirements—model year 2013+ and over 14,000 lbs. Older trucks or lighter vehicles need different testing.

We connect to your truck’s onboard diagnostics system using CARB certified equipment. The OBD test checks your emission control systems to make sure everything is functioning properly. This isn’t a visual inspection or a smoke test—it’s a data-driven analysis of your truck’s emissions performance.

Once testing is complete, we submit the results directly to CARB through the CTC-VIS reporting system. You get official documentation showing your compliance status. If you pass, you’re good for the next six months. If there’s an issue, we’ll tell you exactly what needs attention before you can retest.

Starting in 2027, testing frequency increases to four times per year for OBD-equipped vehicles. But right now, you’re looking at semi-annual testing every six months. Miss a deadline, and you’re facing registration holds and penalties that cost more than the test ever would.

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About All Smog Motors

California CARB Compliant Requirements

What You're Actually Required to Do

As of January 1st, 2025, all commercial vehicles with a gross weight over 14,000 pounds operating in California must test their emission control systems. If your truck is registered out of state but operates here, you’re still required to comply. Nearly all non-gasoline heavy-duty vehicles over 14,000 lbs that work in California fall under CARB truck regulations.

You need testing every six months. You have 30 calendar days to submit a passing test after receiving a Notice to Submit to Testing. If you’re late or you skip it, the DMV holds your registration and CARB starts enforcement. In 2022 alone, CARB collected $21.5 million in penalties from operators who didn’t comply.

Santa Clarita’s trucking industry supports major sectors like construction and logistics. Your trucks are your livelihood. CARB has been using roadside emissions monitoring since January 2023 to screen for high-emitting vehicles, so even if you think you can skip testing, you’re rolling the dice every time you’re on the road.

Our CARB certified smog check covers the OBD testing, CTC-VIS submission, and compliance documentation. You walk away with proof that your 2013 or newer diesel truck over 14,000 lbs GVWR meets California’s heavy-duty vehicle compliance requirements.

What trucks are required to get CARB compliant emissions testing in California?

Your truck needs Clean Truck Check testing if it’s model year 2013 or newer, has a GVWR over 14,000 pounds, and operates in California. This applies to diesel engines with OBD systems.

If your truck is registered out of state but you’re running loads in California, you still need to comply. Nearly all non-gasoline heavy-duty vehicles over 14,000 lbs fall under this requirement. That includes semi trucks, heavy-duty pickups used commercially, motorhomes over 14,000 lbs, and construction or heavy haul equipment.

Older trucks—2012 and earlier—require different testing like smoke opacity checks. Lighter vehicles under 14,000 lbs GVWR aren’t subject to Clean Truck Check. This service only applies to 2013+ diesel trucks over 14,000 lbs.

Right now, you need testing every six months. That’s semi-annual Clean Truck Check testing for your 2013 or newer diesel truck over 14,000 lbs GVWR.

Starting in October 2027, the frequency increases to four times per year—quarterly testing. CARB is tightening the requirements, so what works today won’t be enough in a couple of years.

You’ll receive a Notice to Submit to Testing from CARB. Once you get that notice, you have 30 calendar days to complete and submit a passing test. Miss that window, and you’re facing registration holds and fines. Set reminders, track your deadlines, and don’t wait until the last minute.

CARB can fine you up to $10,000 per vehicle per day for non-compliance. The DMV will place a registration hold on your truck, which means you can’t renew your registration until you’re compliant.

If you’re caught during a roadside inspection without current testing, citations start at $300 per violation and go up from there. CARB has been using roadside emissions monitoring devices since January 2023, so they’re actively screening for high-emitting vehicles.

In 2022, CARB collected $21.5 million in penalties from operators who didn’t comply. Your trucks get pulled off the road, your business stops moving, and you’re paying fines that dwarf the cost of testing. It’s not worth the risk.

Testing costs vary depending on the facility and the specific services included. What you’re paying for is the OBD test itself, the CARB credentialed tester’s time and expertise, the certified equipment, and the CTC-VIS reporting that gets submitted directly to CARB.

Some competitors advertise competitive pricing, and others acknowledge that testing can be pricey. What matters more than the cost is whether the test is done right, submitted on time, and properly documented.

A cheap test that’s done wrong or submitted late costs you way more in fines, registration holds, and downtime. You’re not just buying a test—you’re buying compliance, documentation, and peace of mind that your trucks stay legal and on the road.

No. This specific service—Clean Truck Check OBD testing—only applies to trucks that are model year 2013 or newer and have a GVWR over 14,000 pounds.

If your truck is 2012 or older, it requires different testing like smoke opacity checks. That’s a separate process with different equipment and different regulations. Lighter vehicles under 14,000 lbs GVWR aren’t subject to Clean Truck Check requirements at all.

Don’t assume your older diesel or lighter truck qualifies for this service. CARB has issued more than a dozen air pollution rules, and each one applies to specific vehicle types and model years. If you’re not sure what your truck needs, ask before you show up.

CTC-VIS is the reporting system CARB uses to track Clean Truck Check test results. When your truck gets tested, the results have to be transmitted directly into CTC-VIS so CARB and the DMV know you’re compliant.

If your test results aren’t properly submitted to CTC-VIS, it doesn’t matter that you got tested. As far as CARB is concerned, you’re non-compliant. That means registration holds, fines, and enforcement action.

We handle the CTC-VIS submission as part of your CARB certified smog check. You don’t have to log in, upload documents, or figure out the system yourself. We test your 2013+ diesel truck over 14,000 lbs, submit the results, and give you documentation that proves everything was done right.

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