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You’re not looking for a smog shop. You need CARB diesel compliance handled fast so your trucks can keep moving. Every hour your rig sits waiting for a clean truck check is an hour you’re not billing.
Here’s what changes when you handle this right: no DMV registration holds that ground your fleet. No scrambling when you realize testing is overdue. No $10,000-per-day fines that eat into your margin faster than you can explain them to your accountant.
Our mobile unit shows up where your trucks already are—your yard, a job site, wherever. Testing takes under 20 minutes. Results upload instantly to the CTC-VIS system, updating your records with CARB and DMV in real time. You get compliance certification the same day, and your trucks stay in service.
This matters in Oasis because your operation doesn’t have time for complications. The transportation and warehousing sector here keeps goods moving, and California CARB compliant testing is now mandatory twice a year—going to quarterly in 2027. Missing it isn’t an option.
All SMOG Motors serves one specific need: CARB truck regulations compliance for model year 2013 or newer heavy-duty trucks with a GVWR over 14,000 pounds. That’s it. We’re not a general smog shop trying to do everything.
We’re CARB certified and credentialed, with over 250 clean truck checks completed and more than two years of regulatory expertise. Our mobile technicians carry the latest approved OBD scanning equipment, $2 million in liability insurance, and a valid Mobile Service Rider for fieldwork operations.
Oasis sits in the heart of California’s agricultural and freight corridor, where commercial vehicles are the backbone of the local economy. We built this service specifically for operators here who need compliance handled correctly, quickly, and without the runaround. You call, we come, you’re compliant.
You schedule a time that works for your operation. We show up with our mobile testing unit—same day or next day, depending on your call time.
Our technician connects to your truck’s OBD system using CARB-approved scanning equipment. We’re reading emissions data from 2013 and newer diesel engines equipped with J1939 or J1979 connectors. The scan takes less than 20 minutes per vehicle.
Once the test completes, results upload directly into the CTC-VIS portal. This is the state’s official system for tracking heavy-duty vehicle compliance. Your truck’s record updates with both CARB and the DMV instantly—no waiting, no paperwork delays, no wondering if it went through.
If you don’t have a CTC-VIS account set up yet, we help with that too. CARB requires it, and testing without it won’t clear non-compliance notices. We make sure your account is active and your vehicles are properly registered in the system before we leave.
You get your compliance certification on the spot. Your truck is legal. You’re back to work.
Ready to get started?
As of January 2025, every commercial vehicle in California with a GVWR over 14,000 pounds must undergo semi-annual CARB emissions testing. This applies specifically to trucks that are model year 2013 or newer—the ones equipped with onboard diagnostics systems.
Heavy-duty vehicles make up just 3% of California’s vehicle fleet but generate over half of the state’s smog-causing pollution. That’s why CARB created this program, and why enforcement is strict. You’re not getting a warning letter. You’re getting a registration hold and potential fines starting at $1,000 per violation, climbing to $75,000 per day for continued non-compliance.
In Oasis and across the Coachella Valley, this hits agriculture, construction, and freight operators especially hard. You’ve got trucks moving produce, materials, and goods across state lines. If your registration gets flagged, the DMV won’t issue tags—even if you pay. And out-of-state trucks? They’re restricted from operating in California entirely until compliance is resolved.
Testing frequency increases to quarterly starting in October 2027. That’s four times per year instead of two. The window to stay compliant gets tighter, and mobile service becomes less of a convenience and more of a necessity. You can’t afford to pull trucks off jobs and send drivers to sit in line at a testing station four times a year.
If your truck is model year 2013 or newer and has a gross vehicle weight rating over 14,000 pounds, yes—you need CARB emissions testing twice a year starting in 2025. This isn’t the same as a standard smog check for passenger vehicles.
CARB calls this a “clean truck check,” and it’s mandatory for all heavy-duty diesel trucks operating in California. The test reads data from your truck’s onboard diagnostics system to verify emissions equipment is working correctly.
If your truck is older than 2013 or weighs less than 14,000 pounds, this requirement doesn’t apply to you. But for newer heavy-duty rigs, there’s no exemption. Commercial vehicles, agricultural trucks, construction equipment—if it meets the year and weight criteria, it needs testing.
The DMV will place a hold on your registration. That means no tags, no renewal, and legally, no operation on California roads. Even if you pay your registration fees, they won’t process it until your compliance record is clear.
Fines start at $1,000 per vehicle and can climb to $10,000 per vehicle per day for continued violations. Out-of-state trucks get hit even harder—CARB can restrict them from operating in California entirely until testing is completed.
This isn’t a grace period situation. CARB expects you to know the requirement and meet it. The DMV won’t give you your money back if you pay before realizing you’re out of compliance. They expect business owners to track their own testing schedules, and falling behind is expensive.
The actual test takes less than 20 minutes per truck. Our technician connects to your OBD system, runs the scan, and uploads results to the CTC-VIS portal in real time.
The difference with mobile service is you’re not adding drive time, wait time, or coordination time to that. We come to your location—your yard, a job site, your home—so your truck never leaves where it’s already parked.
If you went to a fixed testing station, you’d need to factor in travel, potential lines, and the time it takes to get your driver there and back. With mobile testing, you schedule a window, we show up, and you’re compliant before lunch. Same-day and next-day service means you’re not planning days in advance or pulling trucks off jobs.
Yes. CTC-VIS is California’s official portal for tracking clean truck check compliance. Every vehicle subject to testing must be registered in the system, and every test result uploads directly to your account.
If you don’t have an account set up, your test results won’t clear non-compliance notices with CARB or the DMV. That means even if you get tested, your registration hold won’t lift.
We help you get your CTC-VIS account set up and make sure your vehicles are properly registered before we test. This is part of the service—not an extra step you have to figure out on your own. CARB’s system can be confusing if you’ve never used it, and we’ve done it enough times to walk you through it quickly.
No. Our service is specifically for trucks that are model year 2013 or newer AND have a GVWR over 14,000 pounds. That’s the scope of California’s clean truck check requirement, and it’s the only testing we perform.
If your truck is older than 2013, it’s not subject to this regulation—yet. CARB may expand the program in the future, but right now, only 2013 and newer diesel engines with OBD systems are required to test.
If your vehicle weighs less than 14,000 pounds, it falls under standard smog check rules, not heavy-duty CARB compliance. You’d need a different type of testing facility for that. We focus exclusively on the heavy-duty segment because the equipment, certification, and reporting requirements are completely different.
Heavy-duty diesel trucks produce more than half of California’s smog-forming pollution, even though they make up only 3% of vehicles on the road. CARB estimates this testing program will deliver $75 billion in public health benefits by reducing emissions-related illnesses.
The program targets 2013 and newer trucks because those model years are equipped with advanced emissions control systems—diesel particulate filters, selective catalytic reduction, and onboard diagnostics that monitor performance. The test verifies those systems are functioning as designed.
This isn’t about punishing truck owners. It’s about making sure emissions equipment isn’t bypassed, deleted, or malfunctioning. California’s air quality regulations are the strictest in the country, and heavy-duty vehicles are a major focus. For operators in Oasis and the surrounding valley, where agriculture and freight are economic drivers, staying compliant is just part of doing business here now.
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