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You’re not looking for a lecture on California emissions laws. You need your 2013 or newer diesel trucks tested, certified, and back on the road before you lose another day of revenue.
CARB’s Clean Truck Check program isn’t optional anymore. If your heavy-duty vehicles over 14,000 pounds GVWR aren’t compliant, you’re facing DMV registration holds that ground your fleet, fines up to $10,000 per vehicle per day, and the kind of downtime that costs you $500+ every day your trucks sit idle. The testing requirement went into effect October 1, 2024, and as of January 1, 2025, every deadline means you need a passing test or you’re out of compliance.
We bring CARB certified smog check testing directly to your location in West Covina. Your trucks stay on your property. Testing takes 15-30 minutes per vehicle. We upload your certification to CARB’s database immediately, lifting any DMV holds the same day. You’re back in compliance without driving anywhere, waiting in line, or losing half a day of operation.
This is OBD testing for diesel and diesel hybrid trucks with 2013 and newer engines. If your fleet runs older equipment or lighter vehicles under 14,000 pounds GVWR, this program doesn’t apply to you. But if you’re operating modern heavy-duty trucks in California, you’re required to test twice a year starting now.
We operate as one of the few fully licensed and insured mobile CARB testing services in West Covina, CA. We’re not just certified—we’re CARB credentialed testers who completed the official state training and passed the required exams to legally perform Clean Truck Check testing.
West Covina’s trucking community includes hundreds of owner-operators and small fleets like Chozen Trucking Company, Shippers Transport Express, and Zuniga’s Trucking running everything from local deliveries to long-haul routes. These operators don’t have time to shuttle trucks to stationary facilities or wait around for compliance paperwork. We built our service around that reality.
We’ve been handling CARB emissions testing and heavy-duty vehicle compliance for fleets across Los Angeles County. We work with government agencies, utility companies, and corporate fleets that require TSA clearance for airport and port terminal access. You’re not our first rodeo, and we’re not learning the regulations on your dime.
You schedule a time that works for your operation. We show up at your West Covina location with all the equipment needed to perform official CARB Clean Truck Check testing right there on your property.
Our credentialed tester connects to your truck’s OBD system and runs the required diagnostics. This is the same test CARB requires at any authorized facility, but you’re not driving anywhere or taking your vehicle out of service. The test takes 15-30 minutes depending on your truck’s system. We’re checking emissions data, verifying your engine meets California standards, and documenting everything through CARB’s official CTC-VIS system.
If your truck passes, we upload the certification immediately. CARB’s database updates in real-time, which means any DMV registration hold gets lifted that same day. You get your compliance documentation on the spot, and you’re done until your next required test in six months.
If something flags during testing, we’ll tell you exactly what needs attention. You handle the repairs with your mechanic, and we come back to re-test once the work is complete. You only pay when your vehicle passes. No games, no upfront fees for failed tests, no wasted money.
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This service covers OBD emissions testing for diesel and diesel hybrid trucks with 2013 or newer model year engines and a GVWR over 14,000 pounds. That’s the regulatory requirement—if your trucks don’t meet both criteria, they’re not part of the Clean Truck Check program yet.
You get a CARB credentialed tester who shows up when you need them, tests your vehicles without taking them off your property, and handles all the compliance documentation through the official state system. We’re uploading results to the CTC-VIS database that CARB and the DMV actually check. This isn’t some third-party workaround—it’s the real certification your trucks need to operate legally in California.
West Covina sits in the heart of Los Angeles County’s logistics corridor. You’ve got trucks running to the ports, the railyards, distribution centers throughout the Inland Empire, and everywhere in between. CARB and CHP have enforcement authority at weigh stations, roadside inspections, and facility checkpoints. If you’re not compliant when they check, you’re looking at immediate penalties and your truck gets red-tagged until you fix it.
We handle fleet scheduling if you’re running multiple vehicles. You’re not coordinating five separate appointments at five different times. We block out time, run through your entire fleet in sequence, and make sure everyone’s compliant before the deadline. Volume pricing starts at $79 per truck for fleets, and we’re available nights, weekends, and holidays if that’s when your operation runs.
CARB requires emissions testing for diesel and diesel hybrid trucks with 2013 or newer model year engines and a gross vehicle weight rating over 14,000 pounds that operate on California public roads. This includes semi trucks, heavy-duty pickups, box trucks, dump trucks, and any commercial vehicle that meets those weight and year requirements.
If your truck was manufactured in 2012 or earlier, you’re not required to test under the Clean Truck Check program yet. If your vehicle weighs under 14,000 pounds GVWR, it’s also not covered. The program specifically targets newer heavy-duty diesel equipment because those vehicles are OBD-equipped and can be tested through the onboard diagnostics system.
You’re required to test twice per year starting January 1, 2025. CARB sends notices to registered owners when testing is due, but you’re responsible for compliance whether you get the notice or not. If you’re operating a qualifying truck in California, you need to stay on top of your testing schedule or you’ll end up with a DMV registration hold.
The actual testing takes 15-30 minutes per vehicle. Your truck never leaves your property and stays exactly where it’s parked. We connect to the OBD port, run the diagnostics, and document everything on-site.
Traditional compliance methods mean driving your truck to a testing facility, waiting in line, leaving your vehicle there while they process everything, and then driving back. You’re looking at 1-3 hours of total time per truck, plus the cost of fuel and driver time. That’s $300-$900 in downtime costs per vehicle depending on your operation.
Mobile testing eliminates all of that. We schedule around your operation, show up when it’s convenient, and handle everything while your truck sits in your yard. If you’re running a fleet, we can test multiple vehicles back-to-back in the same visit. You’re not coordinating multiple trips or pulling trucks out of rotation for half a day. The whole process is designed to minimize disruption to your business.
If your truck doesn’t pass, we’ll tell you exactly what flagged during the OBD diagnostics. Usually it’s an emissions system fault, a sensor issue, or something in your diesel particulate filter or exhaust system that needs attention. You’ll know what needs to be fixed before we leave.
You take your truck to your mechanic or repair facility and get the work done. Once the repairs are complete, we come back and re-test on-site. You only pay when your vehicle passes—there’s no charge for a failed test, and you’re not out money for testing that doesn’t get you compliant.
The important thing is timing. If CARB sent you a Notice to Submit to Testing, you have 30 days to submit a passing test result. If you fail and need repairs, that clock is still running. Get the work done quickly and schedule your re-test as soon as possible. Missing the 30-day deadline means enforcement action, which includes fines and potential DMV holds that ground your truck until you’re compliant.
Yes. If you’re an out-of-state operator running heavy-duty diesel trucks in California, you’re subject to the same CARB emissions requirements as California-registered vehicles. The Clean Truck Check program applies to any qualifying truck that operates on California public roads, regardless of where it’s registered.
Out-of-state truckers delivering to California ports, railyards, and distribution centers need to maintain CARB compliance or they risk getting flagged at weigh stations and inspection points. CHP and CARB have enforcement authority at these checkpoints, and they’re actively checking compliance status. If your truck isn’t certified, you’re facing the same penalties as any other non-compliant vehicle—up to $10,000 per day.
We can test your out-of-state trucks when you’re in the West Covina area. The process is identical: we come to your location, run the OBD diagnostics, and upload your certification to CARB’s database. You get your compliance documentation immediately, and you’re cleared to operate in California. Many out-of-state operators schedule testing when they’re already in Southern California for deliveries, so they’re not making a special trip just for compliance.
Pricing starts at $79 per truck for fleets. Individual trucks and smaller operations may pay slightly more depending on scheduling and location. You only pay when your vehicle passes testing—there’s no upfront charge for failed tests or diagnostic fees if something doesn’t check out.
That pricing includes the on-site visit, the full OBD emissions test, immediate upload to CARB’s CTC-VIS database, and your official compliance certification. You’re not paying separately for travel, documentation, or database filing. It’s one flat rate per passed truck.
Compare that to the cost of non-compliance. CARB fines run up to $10,000 per vehicle per day. DMV registration holds mean your truck can’t legally operate until you’re compliant, which costs you $500+ per day in lost revenue. Even just the downtime from driving to a stationary facility costs most operators $300-$900 per vehicle when you factor in driver time and lost productivity. Mobile testing at $79 per truck is the cheapest part of staying compliant—it’s everything else that gets expensive when you’re not.
We offer same-day and next-day scheduling depending on current demand and your location in West Covina. If you just received a Notice to Submit to Testing from CARB, don’t wait until day 29 to call. The sooner you schedule, the more flexibility we have to get you in quickly.
Emergency situations get priority. If you’re facing an immediate deadline or your truck is already flagged with a DMV hold, we’ll do everything possible to get you tested within 24-48 hours. We run nights, weekends, and holidays specifically because compliance deadlines don’t care about your schedule.
Once we test and your truck passes, the certification uploads to CARB’s database immediately. DMV status updates typically process within 1-3 business days, but the compliance record is instant. If you need documentation to show enforcement or your fleet manager, you’ll have it before we leave your property. The faster you move on scheduling, the faster you’re back in compliance and the less risk you’re carrying.
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