Hear from Our Customers
You’re not dealing with registration blocks at the DMV. Your trucks aren’t sitting idle because they can’t legally operate on California roads. And you’re definitely not writing checks for $10,000 per vehicle per day in CARB penalties.
That’s what compliance looks like. No drama. No surprise fines. Just trucks doing what they’re supposed to do—making you money.
If you’re operating 2013 or newer diesel trucks over 14,000 pounds GVWR in California, you need semi-annual CARB emissions testing. Miss it, and you’re looking at serious financial exposure. CARB collected over $21 million in penalties in 2022 alone, and they’re not slowing down.
The testing itself uses OBD systems built into your newer trucks. It’s faster than the old manual inspections, but it has to be done by a CARB credentialed tester using certified equipment. That’s where we come in.
We serve the Murrieta and Riverside County trucking community with CARB certified emissions testing. Our testers are credentialed through California Air Resources Board training, which means they’ve passed the official course and exam required to perform heavy-duty vehicle compliance testing.
Murrieta sits right in the heart of Southern California’s logistics corridor. Trucks move through here constantly, and every one of those heavy-duty diesels needs to stay compliant or risk getting pulled off the road.
We’re not here to upsell you or waste your time. You need valid CARB compliance testing for your 2013+ trucks, and we provide exactly that. Local, straightforward, and done right the first time.
First, we verify your truck qualifies. This service applies only to model year 2013 or newer heavy-duty trucks with a GVWR over 14,000 pounds. If your truck is older or lighter, this isn’t the test you need.
Once confirmed, we connect to your truck’s OBD system using CARB-certified testing equipment. The OBD system monitors your emissions controls in real time, which is why newer trucks can skip the old tailpipe tests. We pull the diagnostic data, check for any fault codes, and verify your emissions systems are working as designed.
If everything checks out, you get your CARB certificate of compliance. That certificate proves to the DMV and CARB enforcement that your truck meets California’s Clean Truck Check requirements. You’ll need to repeat this process twice a year—and starting in 2027, quarterly testing becomes mandatory for 2013+ engines.
The whole process is faster than traditional inspections, which used to take one to three hours and cost you $300 to $900 in downtime per vehicle. You’re in, you’re tested, you’re compliant, and you’re back on the road.
Ready to get started?
You get a valid CARB emissions test performed by a credentialed tester using state-certified equipment. That’s the baseline. But what you’re really getting is protection from penalties that can shut down your operation.
In Riverside County, commercial trucking is a major economic driver. The I-15 and I-215 corridors run right through Murrieta, and thousands of heavy-duty trucks use these routes daily. Every single one operating in California needs to meet CARB’s heavy-duty vehicle compliance standards.
Your certificate proves compliance to law enforcement, CARB inspectors, and the DMV. Without it, your registration gets flagged, your trucks can’t legally operate, and you’re exposed to fines that start at $1,000 per day per vehicle and can climb to $10,000.
This isn’t a service you shop for based on price. It’s a regulatory requirement you need done correctly. We handle the testing, you get the documentation, and your fleet stays operational. That’s the transaction.
Yes, if you operate in California. CARB compliance applies to any heavy-duty diesel truck over 14,000 pounds GVWR that drives on California public roads, regardless of where it’s registered.
Out-of-state carriers often miss this requirement and get hit with penalties during roadside inspections or weigh station checks. CARB doesn’t care if your truck is based in Nevada, Arizona, or anywhere else. If it’s operating here, it needs to be compliant here.
The testing requirement applies specifically to 2013 and newer model year trucks. Older trucks have different compliance rules under the Truck and Bus regulation, but they’re not part of the Clean Truck Check program that uses OBD testing.
Right now, twice a year. CARB requires semi-annual emissions testing for trucks with 2013 or newer engines over 14,000 pounds GVWR.
That frequency is increasing. By 2027, you’ll need quarterly testing—four times per year. CARB is tightening enforcement and expanding the program, so the compliance burden is only going up.
Missing a testing deadline doesn’t just risk a fine. It triggers a registration hold at the DMV, which means your truck can’t be renewed until you’re compliant. That’s a hard stop on your operations, and it’s entirely avoidable if you stay on schedule.
You’ll need to fix whatever triggered the failure before you can get a passing certificate. The OBD system will show fault codes if your emissions controls aren’t working properly—things like a malfunctioning diesel particulate filter or issues with your selective catalytic reduction system.
Once the repairs are done, you come back for a retest. You can’t operate legally in California without a valid compliance certificate, so this isn’t something you can put off.
The good news is that OBD testing catches problems early, before they turn into expensive breakdowns. A failed test is frustrating, but it’s better than a $15,000 DPF replacement on the side of the highway or a $10,000 daily penalty from CARB enforcement.
It has to be done by a CARB credentialed tester using certified equipment. Not every smog shop can perform heavy-duty vehicle compliance testing, because the requirements are completely different from passenger car smog checks.
The tester needs to have completed CARB’s official training course and passed the exam. The testing equipment needs to be certified by the California Air Resources Board. If either of those things is missing, the test isn’t valid.
You can verify a tester’s credentials through CARB’s website, but the simpler approach is to ask directly. Any legitimate shop performing this service will tell you upfront that they’re credentialed and equipped for Clean Truck Check testing.
Testing costs vary by provider, but the bigger cost is downtime. Traditional manual inspections used to take one to three hours per truck and cost you $300 to $900 in lost productivity per vehicle.
OBD-based testing is faster because we’re pulling data directly from your truck’s computer instead of running physical tests. You’re looking at significantly less time off the road compared to older inspection methods.
The real question isn’t what the test costs—it’s what non-compliance costs. A single day of penalties can run $1,000 to $10,000 per vehicle. A registration block can ground your entire fleet. Compared to that exposure, the testing fee is negligible.
Regular smog checks are for passenger cars and light-duty vehicles under 14,000 pounds. CARB compliance testing—officially called Clean Truck Check—is specifically for heavy-duty diesel trucks with 2013 or newer engines over 14,000 pounds GVWR.
The testing methods are completely different. Passenger car smog checks measure tailpipe emissions. Heavy-duty compliance testing uses your truck’s onboard diagnostics system to verify that emissions controls are functioning properly.
You can’t use a passenger car smog check to satisfy CARB’s heavy-duty vehicle requirements. They’re separate programs with separate rules. If you’re running commercial trucks in California, you need the heavy-duty compliance test, not a standard smog test.
Local Resources
Useful Links
Other Services we provide in Murrieta
