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You already know the stakes. If your 2013 or newer heavy-duty truck isn’t compliant with California’s Clean Truck Check program, you’re looking at fines up to $10,000 per vehicle per day. The DMV can freeze your registration. Your truck sits instead of earning.
That’s not a scare tactic. That’s the reality of operating heavy-duty vehicles in California since January 2025.
This isn’t like the old smog check you’re used to. Clean Truck Check is a separate CARB diesel compliance program that requires semi-annual testing using OBD equipment—and only CARB-credentialed testers can perform it. You can’t skip it. You can’t delay it. And if you get flagged at a roadside inspection, you’ve got 30 days to submit proof or face penalties.
We handle the testing so you stay compliant, keep your trucks on the road, and avoid the expensive consequences of falling behind. You get your CARB compliance certificate, your trucks stay registered, and your business keeps moving.
We serve the Palm Springs and Coachella Valley trucking community with CARB-certified testing for heavy-duty vehicles. We’re not a general smog shop trying to figure out truck compliance on the fly—we’re credentialed specifically for Clean Truck Check testing.
Our technicians use CARB-approved OBD testing devices and follow the exact protocols required by California’s Heavy-Duty Inspection and Maintenance program. We understand the difference between pre-2013 and OBD-equipped trucks, and we know how to navigate the reporting requirements that keep you clear with CARB and the DMV.
Palm Springs has a unique trucking landscape—small fleets, independent owner-operators, diesel motorhomes crossing state lines. We’ve worked with all of them. If your truck is model year 2013 or newer with a GVWR over 14,000 pounds, we can test it and get your compliance status updated fast.
You bring your 2013 or newer heavy-duty truck to our Palm Springs location. We verify that your vehicle qualifies for OBD testing under the CARB HD I/M program—that means checking your GVWR, model year, and engine type.
Our CARB-credentialed technician connects to your truck’s onboard diagnostics system using certified testing equipment. The OBD scan checks for emissions-related fault codes, readiness monitors, and system performance. This isn’t a visual inspection or a tailpipe test—it’s a data-driven compliance check that CARB requires for all 2013+ diesel engines.
If your truck passes, we submit the results directly to the CARB database. You’ll receive documentation showing your compliance status, and your record gets updated with the DMV. If there’s an issue, we’ll tell you exactly what needs attention before you can retest. You have a 90-day window before your deadline to submit a passing test, so if repairs are needed, you’ve got time to handle them without penalties.
The whole process is designed to be quick. You’re not sitting around all day. We get you tested, documented, and back on the road.
Ready to get started?
California’s Clean Truck Check program started January 1, 2025, and it applies to every heavy-duty vehicle over 14,000 pounds GVWR operating in the state—whether you’re registered here or not. If your truck is 2013 or newer with an OBD-equipped diesel engine, you need testing twice a year. That requirement jumps to four times a year starting October 2027.
This isn’t optional. CARB tracks compliance through roadside monitoring, and if your truck gets flagged, you’ll receive a Notice to Submit to Testing. You’ve got 30 days to get tested and submit proof, or you’re facing penalties and registration issues.
Palm Springs sits right on major freight corridors serving the Coachella Valley, with trucks moving goods between Los Angeles, Arizona, and local distribution centers. If you operate in this region—whether you’re hauling produce, running a small fleet, or driving a diesel motorhome—you’re subject to these rules. The testing has to be done by a CARB-credentialed facility using approved equipment, and the results get reported directly to the state database.
We handle the technical side. You stay focused on your routes, your customers, and your business. The compliance part is straightforward when you know where to go and what’s required.
If your truck is model year 2013 or newer and has a gross vehicle weight rating over 14,000 pounds, it needs Clean Truck Check testing—not a regular smog check. These are two separate programs run by CARB.
Clean Truck Check uses OBD testing equipment to scan your truck’s onboard diagnostics system for emissions compliance. Regular smog checks use different methods and apply to lighter vehicles. You can’t substitute one for the other.
If your truck is older than 2013, it may still need testing under the Heavy-Duty Vehicle Inspection Program, but that’s a different process. The key qualifier here is the model year and weight rating. If you’re not sure which program applies to your vehicle, bring your registration and we’ll confirm what you need.
Right now, if your truck is 2013 or newer with a GVWR over 14,000 pounds, you need Clean Truck Check testing twice a year—that’s semi-annual compliance. CARB sets your testing deadlines based on your vehicle’s registration and compliance history.
Starting in October 2027, the frequency increases to four times per year for OBD-equipped vehicles. That’s quarterly testing, which means you’ll need to plan for more frequent visits to stay compliant.
You can submit a passing test up to 90 days before your deadline, so if you know your compliance date is coming up, it’s smart to get tested early. That gives you time to handle any repairs if something comes up, and you won’t be scrambling at the last minute to avoid penalties or registration holds.
If your truck doesn’t pass, we’ll give you a detailed report showing exactly what triggered the failure—usually it’s an emissions-related fault code or a readiness monitor that isn’t set. You’ll need to get those issues repaired before you can retest.
The good news is you have a 90-day window before your compliance deadline to submit a passing test. That means you’re not immediately penalized for a failed test—you just need to fix the problem and come back.
Once the repairs are done, you return for a retest. If everything checks out, we submit your passing results to CARB and your compliance status gets updated. The key is not to wait until the last minute. If you’re close to your deadline and you fail, you might not have enough time to get repairs done and retested before penalties kick in.
Yes. If your truck operates in California—even if it’s registered in another state—you’re required to comply with Clean Truck Check regulations. CARB doesn’t care where your plates are from. If you’re driving a 2013 or newer heavy-duty truck over 14,000 pounds GVWR on California roads, you need testing.
Out-of-state operators sometimes don’t realize they’re subject to California emissions rules until they get flagged at a weigh station or roadside inspection. Once you receive a Notice to Submit to Testing, you’ve got 30 days to get compliant.
We can test your truck regardless of where it’s registered. The process is the same—OBD scan, compliance check, results submitted to CARB. If you’re running routes through California regularly, it’s worth staying on top of this before you get pulled over and hit with penalties.
Testing costs vary depending on the facility, but you’re typically looking at a straightforward fee for the OBD scan and compliance reporting. It’s a fraction of what you’d pay in fines if you skip it—remember, penalties can reach $10,000 per vehicle per day for non-compliance.
The bigger cost isn’t the test itself. It’s the downtime, the registration holds, and the lost income if your truck gets flagged and you can’t operate legally. That’s why most owner-operators and fleet managers treat this as a regular maintenance expense, not an optional service.
We’re upfront about pricing when you call or come in. No hidden fees, no surprises. You’re paying for CARB-certified testing by a credentialed technician using approved equipment—and you’re getting documentation that keeps your trucks on the road and your business running.
Clean Truck Check is a newer program that started in January 2025, and it’s specifically for heavy-duty vehicles with OBD systems—that’s 2013 and newer trucks over 14,000 pounds GVWR. It uses onboard diagnostics to check emissions compliance, and it’s required twice a year.
Older smog testing programs for trucks used different methods, and they applied to different vehicle types and model years. If your truck was built before 2013, it might fall under the Heavy-Duty Vehicle Inspection Program, which has its own set of rules and testing procedures.
The key thing to understand is that Clean Truck Check is mandatory for newer trucks, it’s tracked by CARB through a statewide database, and it’s enforced with serious penalties. You can’t just go to any smog shop—you need a facility with CARB-credentialed testers and certified OBD equipment. That’s what we provide here in Palm Springs.
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