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A DMV registration hold doesn’t send you a warning. One day your truck is running routes on the SR-60 corridor through Pomona, and the next it’s grounded because a compliance deadline passed and nobody caught it in time. That’s the real cost of letting Clean Truck Check fall through the cracks.
When you get tested through All SMOG Motors, your results go directly into CARB’s CTC-VIS database at the time of testing. You don’t log into a portal. You don’t upload anything. You don’t chase a confirmation. The test happens, the submission happens, and you have documentation that your truck is compliant same day.
Pomona sits at the eastern edge of Los Angeles County, right where the San Gabriel Valley hands off to the Inland Empire. Trucks based in Pomona run SR-60 east into Riverside daily, connect north through the Kellogg Interchange onto I-10, and cycle through freight routes that put them directly in CARB’s monitoring range. CARB actually held a Clean Truck Check outreach event in Pomona specifically because this city’s trucking population is on their radar. Getting ahead of your compliance deadline isn’t overcautious it’s just good business sense for anyone running these corridors.
All SMOG Motors is a CARB-credentialed Clean Truck Check testing provider serving Los Angeles County and Riverside County. That credential isn’t self-declared it’s issued by the state, listed on CARB’s public database, and renewable every two years. You can look us up before you ever call.
The equipment matters just as much as the credential. CARB requires testing with certified OBD devices not generic code readers, not shop diagnostic tools. Every test we perform uses CARB-approved equipment, which means the result is valid, the submission goes through, and you’re not left wondering if the test actually counted.
Pomona is squarely within our service territory LA County on one side, Riverside County on the other. For operators running trucks through the Spadra industrial corridor, hauling freight out of Fairplex, or cycling routes between Pomona and the Inland Empire, that dual-county coverage matters. These aren’t routes that stay in one county, and your testing provider shouldn’t either.
The Clean Truck Check is an OBD-based emissions test not a traditional smog inspection. If you’ve already been turned away from one of Pomona’s passenger car smog shops, that’s exactly why. Those shops serve a different vehicle class. This test is specifically for model year 2013 or newer trucks with a GVWR over 14,000 pounds, and it requires a CARB-credentialed tester with certified equipment.
When you book with us, the process is straightforward. Our technician connects a CARB-certified OBD device to your truck’s diagnostic port and reads the data your truck’s onboard system has already been collecting emissions readiness monitors, fault codes, system status. The scan itself doesn’t take long. What matters is that the equipment is right and the tester is credentialed, because CARB won’t accept results from a non-certified device or an uncredentialed shop.
Once the test is complete, results are submitted electronically to CARB’s CTC-VIS system on the spot. If your truck passes, compliance is recorded and you receive documentation. If something flags during the scan, you’ll know exactly what it is and what needs to happen before a retest. One thing worth knowing: you can submit a test up to 90 days before your compliance deadline, so testing early before Pomona’s summer heat peaks and puts extra stress on diesel emissions systems is a smart move, not an unnecessary one.
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Every test we perform covers the full OBD scan required under CARB’s Clean Truck Check program emissions readiness monitors, fault code review, and system status using CARB-certified testing equipment. The result is submitted directly and electronically to the CTC-VIS database at the time of testing, so there’s no gap between the test and the record. Your compliance status updates in the system the same day.
This service applies to model year 2013 or newer diesel and heavy-duty vehicles with a GVWR over 14,000 pounds semi trucks, heavy box trucks, and other OBD-equipped commercial vehicles in that weight class. If your truck doesn’t meet both of those criteria, it falls outside the Clean Truck Check program entirely. That distinction matters in Pomona, where some operators have spent time and money at the wrong type of shop before finding out the hard way.
One thing that catches people off guard: the annual CARB compliance fee of $31.18 per vehicle is paid separately through CTC-VIS and does not cover the cost of the test itself. Both are required. We handle the credentialed test and the direct submission and if you need help understanding where the annual fee fits into your compliance calendar, that’s a conversation worth having before your deadline, not after. For Pomona-area fleet operators managing multiple trucks across the Spadra corridor or running regular routes into Riverside County, staying on top of both obligations the fee and the test is what keeps your registration clear and your trucks on the road.
If your truck is model year 2013 or newer and has a GVWR over 14,000 pounds, yes it’s subject to CARB’s Clean Truck Check program regardless of where in California it’s based. Being based in Pomona doesn’t create any exemption, and neither does the fact that your routes cross into San Bernardino or Riverside County. The requirement follows the vehicle, not the address.
What makes Pomona particularly relevant is the freight corridor exposure. Trucks running SR-60, SR-71, and the I-10 through the Kellogg Interchange are operating on routes where CARB deploys Remote Emissions Monitoring Devices. Your truck can be flagged as a potential high emitter without being pulled over, which triggers a Notice to Submit to Testing with a 30-day response window. That’s not a lot of time to find a credentialed tester, schedule, test, and get results submitted especially if you’re running daily routes through Pomona and into the Inland Empire. Testing proactively, before any notice arrives, is the smarter play.
Missing your compliance deadline triggers an automatic DMV registration hold on the vehicle. Once that hold is in place, your truck cannot be legally registered and an unregistered commercial truck operating on California roads, including the SR-60 and I-10 corridors through Pomona, is a serious liability. Beyond the registration hold, CARB can issue fines of up to $10,000 per vehicle per day for non-compliance. For an owner-operator running one or two trucks, that’s not a recoverable situation.
The other consequence that hits closer to home for Pomona operators doing port runs or freight broker work is access denial. Many port facilities and freight brokers now require documented CARB compliance before they’ll accept a load. A grounded truck isn’t just a fine it’s lost contracts and lost revenue on top of the penalty. The fastest way out of a compliance hold is a passing test result from a credentialed tester submitted to CTC-VIS. We handle that submission directly, so there’s no delay between the test and the record update.
They’re completely different tests for completely different vehicles. A standard smog check the kind offered at Pomona’s passenger car smog stations tests lighter vehicles using tailpipe emissions sampling and visual inspection. The Clean Truck Check is an OBD-based test designed specifically for model year 2013 or newer heavy-duty vehicles with a GVWR over 14,000 pounds. It reads data directly from the truck’s onboard diagnostic system emissions readiness monitors, fault codes, system status using CARB-certified testing equipment.
A regular smog shop cannot perform a Clean Truck Check. The equipment is different, the credentialing is different, and the submission process is different. Results have to be submitted electronically to CARB’s CTC-VIS database by a state-credentialed tester. If a shop isn’t listed on CARB’s credentialed tester database, the test result won’t be accepted no matter how thorough the inspection was. This is one of the most common and costly mistakes Pomona truck owners make: going to the nearest smog shop, paying for a test, and then finding out it doesn’t count.
As of 2025, most trucks subject to the Clean Truck Check program are required to test twice per year semi-annually. That’s already double what many operators were managing in prior years, and the frequency is set to increase again. By October 2027, the testing requirement escalates to quarterly four times per year for most vehicles in the program.
For a Pomona owner-operator running one or two trucks, that means up to eight compliance appointments per year across your fleet within the next few years. Building a relationship with a credentialed tester now someone who knows your trucks, your schedule, and your routes makes that escalating requirement manageable. It also means you’re not scrambling every few months to find a qualified provider. One thing that helps: you can submit a test up to 90 days before your compliance deadline, so you don’t have to wait until the last minute. Testing early, before summer heat in the San Gabriel Valley puts additional stress on diesel emissions systems, is a practical strategy that Pomona operators running daily routes should consider building into their schedule.
A failing result is not an immediate fine or registration hold but it does start a clock. If your truck fails the Clean Truck Check, you’ll need to address whatever the OBD scan flagged, make the necessary repairs, and submit a passing retest result before your compliance deadline. The deadline is what triggers enforcement action, not the failed test itself. Testing early gives you the time to deal with any issues without being backed into a corner.
When we perform the OBD scan and something flags, you’ll know exactly what the system found which readiness monitors are incomplete, which fault codes are present, and what that means in plain terms. That information goes to you, not just into a database. Common issues include diesel particulate filter problems, incomplete readiness monitors after a recent battery disconnect or repair, and fault codes from emissions-related sensors. In Pomona’s summer heat where temperatures regularly push into the upper 90s and can exceed 100°F thermal stress on emissions components is a real factor that can push a borderline truck into a failing result. Getting tested earlier in the season, before heat peaks, reduces that risk.
Yes. CARB’s Clean Truck Check requirement applies to any qualifying vehicle operating on California public roads including trucks registered in Arizona, Nevada, Texas, or any other state. The registration state doesn’t create an exemption. If your truck is model year 2013 or newer, has a GVWR over 14,000 pounds, and operates in California, it’s subject to the program.
This matters specifically for Pomona because SR-60 and I-10 are major interstate freight corridors. Trucks coming in from the Inland Empire, from Arizona via I-10, or from Nevada via I-15 connecting through the region pass through Pomona’s freeway system regularly. CARB’s Remote Emissions Monitoring Devices operate on these corridors and can flag out-of-state trucks the same way they flag California-registered vehicles. If your out-of-state truck gets flagged and you receive a Notice to Submit to Testing, you have 30 calendar days to produce a passing result from a CARB-credentialed tester the same deadline that applies to every other operator. We can test and submit compliance for out-of-state vehicles operating in California, and the process is the same regardless of where the truck is registered.
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