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Starting January 1, 2024, every heavy-duty truck operating in California needs proof of CARB compliance. No proof means DMV registration blocks, potential fines up to $1,000 per day per vehicle, and trucks sitting idle instead of generating revenue.
You’re already dealing with tight delivery windows and rising fuel costs. The last thing you need is a compliance violation shutting down your operation. CARB diesel compliance isn’t optional anymore, and the testing requirements hit twice a year for most fleets.
Here’s what compliance actually gets you: clean registration, no enforcement headaches, and the ability to operate anywhere in California without looking over your shoulder. Your trucks stay on the road. Your drivers stay on schedule. Your business keeps moving.
We handle CARB emissions testing for model year 2013 and newer diesel trucks over 14,000 pounds GVWR. We come to you, test on-site, and get your TRUCRS certificate processed so you’re documented in the state system. No guesswork, no surprises.
We operate in Corona, CA, serving the Inland Empire’s trucking and logistics corridor. We’re CARB-credentialed testers using state-certified equipment, which means your test results actually count when CARB or CHP comes knocking.
Corona sits at the intersection of major freight routes, with thousands of heavy-duty trucks moving through daily. You’re not the only one scrambling to figure out the new compliance requirements. We’ve been helping fleet operators and owner-operators in Riverside County navigate CARB regulations without the usual confusion or wasted time.
We don’t run a traditional smog shop where you wait in line. We bring the testing equipment to your yard, your warehouse, or wherever your trucks are parked. You schedule a time, we show up, and we handle the rest.
First, we confirm your truck qualifies. This service only applies to diesel trucks model year 2013 or newer with a gross vehicle weight rating over 14,000 pounds. If your truck has an onboard diagnostics system—which all 2013+ diesel engines do—we can test it.
We schedule a time that works for you and bring our CARB-certified testing equipment to your location. The test itself involves connecting to your truck’s OBD system and scanning emissions data. We’re looking at nitrogen oxide levels, particulate matter, and other emissions markers that California tracks.
The test takes about 30 to 45 minutes per truck, depending on your fleet size and how many vehicles we’re processing. Once testing is complete, we submit your results directly to CARB’s database and provide you with your TRUCRS certificate. That certificate is your proof of compliance for DMV registration and any roadside inspections.
You’ll need testing twice per year under the current regulations. We can set up recurring appointments so you’re never scrambling at the last minute. If a truck fails, we’ll walk you through what needs repair and retest once the issue is fixed.
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Every test includes a full OBD scan using CARB-approved diagnostic equipment. We’re pulling data directly from your truck’s computer system—the same data CARB uses to determine compliance. This isn’t a visual inspection or a quick check. It’s a complete emissions profile.
You get your TRUCRS certificate immediately after passing, and we handle the database submission so your compliance status shows up in the state system. That matters when you’re renewing registration or if you get pulled over for a roadside inspection. Your truck shows as compliant in real time.
Corona’s proximity to major distribution centers and the Ports of Los Angeles and Long Beach means enforcement is tighter here than in other parts of the state. CARB and CHP run regular compliance sweeps, especially near logistics hubs. If you’re operating in Southern California, you’re in a high-scrutiny zone.
We also provide documentation for your records. If you’re managing a fleet, you need proof that every truck has been tested on schedule. We keep digital records and can provide compliance reports for your entire operation. That’s useful during audits or if you’re bidding on contracts that require verified CARB compliance.
Mobile service means we’re not adding hours of downtime to your schedule. Traditional smog check locations can take one to three hours per vehicle when you factor in drive time and waiting. We eliminate that. Your trucks stay at your facility, and we work around your dispatch schedule.
If your truck fails, you’ll get a detailed report showing exactly what triggered the failure. Most failures come from faulty sensors, exhaust system issues, or engine problems that affect emissions output. We don’t perform repairs, but we’ll tell you what needs fixing.
Once you’ve had the repairs done, we come back and retest. There’s no penalty for failing the initial test—you just can’t get your TRUCRS certificate until the truck passes. The bigger issue is timing. If your registration is coming up and you’re not compliant, DMV will block your renewal.
That’s why testing early matters. Don’t wait until the week before your registration is due. If something fails and needs repair, you’ll need time to get it fixed and retested before your deadline hits.
Right now, the requirement is twice per year for nearly all heavy-duty vehicles in the program. That applies to trucks model year 2013 and newer with a GVWR over 14,000 pounds operating in California.
The testing schedule is set by CARB, not by us. Your specific due dates depend on when your truck was first registered in the compliance program. We can help you track those dates and set up recurring appointments so you’re never late.
Missing a test means you’re out of compliance, which opens the door to fines, registration blocks, and enforcement action. It’s not worth the risk. Set a reminder, schedule in advance, and treat it like any other required maintenance. Twice a year isn’t fun, but it’s manageable if you plan ahead.
No. This service only applies to diesel trucks model year 2013 or newer with a GVWR over 14,000 pounds. That’s not our rule—it’s CARB’s regulation. The testing process requires OBD-equipped vehicles, which means 2013 and newer diesel engines.
If your truck is older than 2013 or weighs less than 14,000 pounds, it’s not part of the Heavy-Duty Inspection and Maintenance program. You might have other compliance requirements, but they’re different from what we handle.
Don’t assume your truck qualifies just because it’s commercial. Check the model year and weight rating. If you’re not sure, we can verify eligibility before scheduling. We’re not going to waste your time testing a vehicle that doesn’t meet the criteria.
TRUCRS stands for Truck Regulation Upload Compliance and Reporting System. It’s the database CARB uses to track which trucks have been tested and whether they’re compliant. Your TRUCRS certificate is proof that your truck passed emissions testing and is registered in the system.
You need that certificate for DMV registration. Without it, you’ll get a registration block and won’t be able to renew. You also need it if you’re stopped for a roadside inspection. CHP can check your compliance status on the spot, and if you’re not in the system, you’re getting cited.
The certificate also matters if you’re hauling for certain shippers or entering facilities with strict compliance requirements. Some ports and distribution centers won’t let non-compliant trucks through the gate. Your TRUCRS certificate keeps those doors open.
Testing takes about 30 to 45 minutes per truck. That’s the actual test time—not including drive time, because we come to you. If you’ve got multiple trucks, we can process them back-to-back in the same visit.
Pricing depends on how many trucks you’re testing and whether you’re setting up recurring service. We’re not the cheapest option in Corona, and that’s intentional. You’re paying for certified testers, calibrated equipment, and accurate results that actually hold up with CARB. Cheap testing often means shortcuts, and shortcuts mean failed audits or rejected certificates.
Compare the cost of testing to the cost of non-compliance. A single day of fines is $1,000 per vehicle. A registration block can sideline your truck for weeks. Downtime costs you way more than the test itself. We’re not expensive—we’re a lot cheaper than the alternative.
We’re mobile. We come to your location in Corona or anywhere in the surrounding Riverside County area. You don’t drive your trucks to us—we bring the testing equipment to your yard, warehouse, or wherever your fleet is parked.
Mobile service eliminates the downtime and logistical headache of taking trucks out of service for testing. You’re not losing hours of productivity or paying drivers to sit in a smog check line. We work around your dispatch schedule and test on-site.
If you’re managing a fleet, mobile testing is the only approach that makes sense. You can’t afford to pull trucks off the road one at a time and send them across town for compliance checks. We handle everything at your facility so your operation keeps running while we work.
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