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A DMV registration hold doesn’t just stop paperwork. It stops revenue. Every day a truck sits waiting for CARB compliance testing is a day you’re paying drivers, insurance, and overhead with nothing moving.
California’s Clean Truck Check program requires most diesel trucks over 14,000 pounds to pass emissions testing twice a year. Miss it, and the DMV blocks your registration renewal. Fail it, and you’re scrambling for repairs with a deadline hanging over you.
We bring the test to your yard, port, or job site. You schedule it during a natural break. We run the OBD diagnostics, perform the smoke opacity check if needed, and upload results directly to CARB’s system. If you pass, your certification posts immediately and the DMV hold clears in real time. You don’t lose a route, a contract, or a day of work.
All SMOG Motors started after 25 years of running trucks in California’s construction industry. We know what it’s like when CARB sends a notice and your registration is suddenly on hold. We know what downtime costs.
That’s why we built a mobile testing service that works around your schedule, not ours. We’re state-certified, insured, and credentialed by CARB to perform Clean Truck Check testing. We hold TSA clearance for airport and port terminal access, so we can meet your trucks wherever they are in Manhattan Beach, CA and surrounding areas.
We’ve worked with independent owner-operators and large commercial fleets. The process is the same: show up, test fast, upload results, and get you back to work.
First, we confirm your truck qualifies. This service applies only to model year 2013 or newer diesel and alternative fuel vehicles with a GVWR over 14,000 pounds. Those trucks are equipped with OBD systems using J1937 or J1979 connectors, which is what we test.
We schedule a time that works for you—early morning in the yard, between routes, or during routine maintenance. Our certified tester arrives with diagnostic equipment, connects to your truck’s OBD port, and runs the emissions compliance check. If your truck is equipped for smoke opacity testing, we handle that on-site as well.
The test takes minutes, not hours. If your vehicle passes, we issue your Clean Truck Check certificate on the spot and upload your results to California’s CARB system. The DMV sees it immediately. Your registration hold lifts. Your truck stays in service.
If something comes back as “not ready” or fails, we give you a detailed diagnostic report that shows exactly what needs attention. You’re not guessing. You’re not paying for unnecessary work. You know what’s wrong and what it’ll take to fix it. We offer a free retest after repairs.
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You’re paying for a state-certified CARB diesel compliance test performed by a credentialed technician. That test costs $79 per truck when it passes. No pass, no charge. No hidden fees for showing up or plugging in.
You’re also avoiding the real cost of non-compliance. CARB penalties start at $1,000 and can reach $75,000 per violation per day for intentional violations. Registration holds can ground your entire fleet. Downtime runs $300 to $900 per truck per day when you factor in lost contracts, idle drivers, and missed deliveries.
Manhattan Beach has a business community that moves fast. Median household income here is over $193,000, and nearly 21% of residents run their own businesses. That means high expectations and low tolerance for delays. Your clients don’t care why your truck is late—they care that it is.
We work with commercial fleets, utility companies, government agencies, and independent operators across Manhattan Beach, CA. Whether you run one truck or 500, the testing process is the same. Mobile, fast, and built to keep you CARB compliant without the downtime.
If your truck is model year 2013 or newer, runs on diesel or alternative fuel, and has a gross vehicle weight rating over 14,000 pounds, yes. California’s Clean Truck Check program applies to most heavy-duty commercial trucks, buses, motorhomes registered in California, and government vehicles operating in the state.
The program requires periodic emissions compliance testing—currently twice a year for most vehicles. CARB’s system tracks your compliance status. If you miss a test or fall out of compliance, the DMV places a registration hold. That means you can’t renew your registration until you pass.
Older trucks and lighter vehicles aren’t part of this program. If your truck was built before 2013 or weighs under 14,000 pounds, you’re not subject to Clean Truck Check requirements. But if you’re running newer heavy-duty equipment in California, this isn’t optional.
The actual test takes about 10 to 15 minutes per truck. We plug into your OBD system, run the diagnostics, and check emissions data. If your truck requires a smoke opacity test, that adds a few more minutes.
The difference with mobile testing is that we come to you. No driving to a testing facility. No waiting in line. No pulling a truck off a job site or out of a delivery route for half a day.
We schedule around your operations—early morning, between shifts, during planned maintenance windows. You keep working. We handle compliance. And if your truck passes, the certification uploads to CARB immediately. You’re done.
You get a detailed diagnostic report that shows exactly what triggered the failure. It might be a sensor issue, an emissions system fault, or something else flagged by the OBD system. Either way, you’ll know what needs fixing before you spend a dollar on repairs.
We don’t charge you if your truck doesn’t pass. You only pay when you pass. Once you’ve made the repairs, we’ll come back and retest for free. That’s part of the service.
Failing a test isn’t the end of the world, but ignoring it is expensive. A failed test still counts as an attempt, and if you don’t resolve it, the DMV hold stays in place. CARB can issue penalties. Your truck stays grounded. The sooner you address the issue, the sooner you’re back in compliance and back on the road.
California requires that Clean Truck Check testing be performed by a CARB-credentialed tester. You can’t do it yourself, and your mechanic can’t do it unless they’ve completed CARB’s online Tester Training Course and passed the exam.
The results have to be uploaded directly to CARB’s system by someone with the proper credentials. That’s how the DMV knows your truck is compliant. Without that upload, your registration hold doesn’t clear.
We employ state-certified testers who are credentialed specifically for heavy-duty emissions testing. We’re authorized to perform Clean Truck Check tests, issue certificates, and submit results to CARB on your behalf. It’s not a workaround—it’s the only way the system works.
The testing fee is $79 per truck when you pass. But the cost of staying out of compliance is where things get expensive fast.
CARB fines start at $1,000 per violation and can go as high as $75,000 per day for repeat or intentional violations. The DMV will place a registration hold, which means your truck can’t legally operate until you’re compliant. Downtime costs between $300 and $900 per truck per day when you account for lost revenue, driver wages, insurance, and overhead.
If you’re caught operating a non-compliant truck during a roadside inspection, you’re looking at citations, possible impoundment, and damage to your operating authority. CARB collected over $21.5 million in penalties in 2022 alone. They’re not issuing warnings—they’re issuing fines.
Staying compliant is cheaper than catching up after the fact. Testing twice a year is a small line item compared to what non-compliance will cost you.
Yes. We bring the test to your location—whether that’s your yard, a job site, a port terminal, or anywhere else your trucks are parked in Manhattan Beach, CA. We’re insured, TSA-cleared, and equipped to access secure facilities including airports and port terminals.
Mobile testing eliminates the logistical nightmare of pulling trucks out of service and driving them to a stationary smog check station. You don’t lose half a day shuttling vehicles around. You don’t disrupt your dispatch schedule. We work around your operations, not the other way around.
We serve independent owner-operators, small fleets, and large commercial operations across Manhattan Beach and the surrounding South Bay area. Whether you’ve got one truck or a hundred, the process is the same: we show up, we test, we certify, and you stay moving.
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