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You’ve got trucks to run and deadlines to hit. A DMV registration hold because of CARB compliance puts your entire operation at risk.
When you’re out of compliance, you’re not just facing fines. You’re losing contracts, disappointing customers, and watching revenue disappear while your trucks sit idle. That’s not a minor inconvenience—that’s a business threat.
CARB regulations for heavy-duty diesel trucks aren’t optional anymore. If your truck is model year 2013 or newer with a GVWR over 14,000 pounds, you need Clean Truck Check compliance testing. Starting January 2025, every compliance deadline requires a passing test result. Miss it, and the DMV won’t let you register.
We handle OBD testing and smoke opacity checks with CARB-certified equipment. You get results immediately, not days later. If your truck passes, we submit the results directly to CARB, and compliance typically reflects within one business day. If there’s an issue, we identify it on the spot so you can get it fixed and retested fast.
All SMOG Motors has been CARB-certified for over two years and we’ve completed more than 250 Clean Truck Checks. We’re not new to this. We’re licensed, insured with $2 million in liability coverage including a Mobile Service Rider, and we hold TSA clearance for airports and port terminals.
Mead Valley is transforming fast. With FedEx, Amazon, and CJ Logistics setting up operations nearby, trucking demand is exploding in this area. That means more trucks on the road—and more scrutiny on compliance. You’re operating in a region where enforcement is only getting tighter.
We’ve spent 25 years as owner-operators in the construction industry. We know what it’s like to deal with CARB regulations while trying to run a business. We’re not here to lecture you about rules—we’re here to help you stay compliant so you can keep working.
First, we schedule a time that works for you. We’re available 24 hours and we come to your location anywhere in California—your yard, a job site, wherever your truck is.
When we arrive, we connect our CARB-certified OBD scanner to your truck’s diagnostic port. This reads the emissions control system data directly from your engine computer. For trucks that require it, we also perform a smoke opacity test using the same equipment the government uses, conforming to SAE J1667 specifications.
The test takes minutes, not hours. You get your emissions report immediately. If your truck passes, we submit the results to CARB on your behalf. If there’s a failure, we explain exactly what the issue is so you know what needs repair.
Once the test is submitted and your paperwork is filed correctly, compliance usually reflects in the CARB system within one business day. You’ll be clear to register with the DMV and keep your trucks operating without interruption.
We also offer pre-check services using advanced diagnostics software. If you want to avoid a failed test, we can identify potential issues before the official compliance test happens.
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CARB’s Clean Truck Check program applies to nearly all diesel and alternative fuel heavy-duty trucks operating in California. If your truck is 2013 or newer and has a GVWR over 14,000 pounds, you’re required to test. Older trucks and lighter vehicles don’t fall under this specific program.
Starting in 2025, you’ll need to demonstrate compliance every six months. By October 2027, that increases to quarterly testing. The annual compliance fee for 2025 is $31.18, and it adjusts with California’s Consumer Price Index each year.
Here’s what matters most: if you receive a Notice to Submit to Testing from CARB, you have 30 calendar days to submit a passing test result. Miss that deadline and you’re looking at DMV registration holds and fines that start at $1,000 per day, per vehicle.
Mead Valley’s industrial growth means more heavy-duty trucks are moving through this area than ever before. California handles nearly 40% of all U.S. imports, so if you’re running freight in or out of the state, compliance isn’t optional—it’s the cost of doing business here. Out-of-state operators need to understand that accessing the California market requires meeting these regulations.
We stay in direct contact with CARB to resolve compliance issues quickly. We’ve successfully negotiated lowered penalties for many clients, and we always notify you about upcoming regulatory changes that affect your equipment.
CARB’s Clean Truck Check program applies to heavy-duty trucks that are model year 2013 or newer with a gross vehicle weight rating over 14,000 pounds. These are OBD-equipped vehicles, meaning they have onboard diagnostic systems that monitor emissions controls.
This includes diesel and alternative fuel trucks, buses, and other heavy-duty vehicles operating in California. If your truck is older than 2013 or weighs less than 14,000 pounds GVWR, this specific testing requirement doesn’t apply to you.
The regulation covers both California-based fleets and out-of-state trucks that operate here. If you’re running freight into California, you need to comply to avoid DMV registration holds and penalties. The state handles nearly 40% of U.S. imports, so compliance is non-negotiable if you want access to this market.
OBD testing typically runs around $94, while smoke opacity testing is around $180. The exact cost depends on what type of test your truck requires based on its engine and model year.
Some testing companies charge extra fees for things like CARB account setup assistance—sometimes up to $75. We don’t nickel and dime you with add-ons. You pay for the test, you get the results, and we submit them to CARB on your behalf.
There’s also an annual compliance fee that CARB charges directly, which is $31.18 for 2025. That fee adjusts each year with California’s Consumer Price Index. Keep in mind that the cost of testing is minor compared to the penalties for non-compliance—fines start at $1,000 per day, per vehicle, plus DMV registration holds that take your trucks out of service.
You get your emissions report on the spot as soon as testing is complete. There’s no waiting period for results—you’ll know immediately whether your truck passed or failed.
Once we submit the passing test result to CARB and your paperwork is filed correctly, compliance typically reflects in the system within one business day. That means you can move forward with DMV registration and keep your trucks operating without delays.
If your truck fails, we identify the issue right away so you know exactly what needs to be repaired. You can schedule a retest as soon as the repairs are done. The faster you address failures, the less downtime you experience and the lower your risk of penalties.
If your truck fails, we give you a detailed report explaining exactly what triggered the failure. This could be an issue with your diesel particulate filter, NOx sensors, EGR system, or other emissions control components.
You’ll need to get the problem repaired before retesting. We recommend working with a qualified diesel mechanic who understands CARB requirements. Once repairs are complete, contact us to schedule a retest. We can come back to your location and run the test again.
If you received a Notice to Submit to Testing from CARB, you have 30 calendar days from that notice to submit a passing result. Don’t wait until the last minute—if repairs take longer than expected, you could miss the deadline and face registration holds and daily fines. We also offer pre-check diagnostics to catch potential issues before the official compliance test, which can save you from unexpected failures.
Yes. We’re a 24-hour mobile testing service, and we come to you anywhere in Mead Valley or throughout California. Whether your truck is at your yard, a job site, a warehouse, or even a customer location, we’ll meet you there.
Mobile testing eliminates downtime. You don’t have to drive your truck to a testing station, wait in line, or take it out of service for half a day. We show up with CARB-certified equipment, run the test on-site, and give you results immediately.
We’re fully insured with $2 million in liability coverage including a Mobile Service Rider, which most mobile testers don’t carry. We also hold TSA clearance for airports and port terminals, so we can access restricted areas if that’s where your trucks operate. Scheduling is flexible—we work around your schedule, not the other way around.
Starting in 2025, trucks subject to Clean Truck Check must demonstrate compliance every six months. That means you’ll need a passing test result twice a year to stay in good standing with CARB and avoid DMV registration holds.
By October 2027, the testing frequency increases to quarterly—four times per year. CARB is phasing this in gradually, so you have time to adjust your maintenance and testing schedules.
You’ll also receive compliance deadlines directly from CARB based on your truck’s VIN and registration. If you get a Notice to Submit to Testing, you have 30 days to submit a passing result. Missing deadlines results in penalties and registration holds, so it’s critical to stay on top of your testing schedule. We can help you track upcoming deadlines and send reminders so you’re never caught off guard.
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