- Deadline approaching? Call (858) 257-8576 Now
Check Out Our Reviews!
If your truck sits because of a DMV registration hold, you’re not just dealing with paperwork you’re dealing with missed loads, broken delivery commitments, and clients who don’t wait around. For the food distributors, restaurant suppliers, and wholesale operators running routes out of San Gabriel’s Valley Boulevard and Garvey corridors, that’s not a minor inconvenience. That’s a hit to the business itself.
San Gabriel sits directly on the I-10, one of the most active diesel freight corridors in the country. CARB’s roadside monitoring systems are running on these exact roads. If your truck has been flagged as a potential high emitter, a Notice to Submit to Testing may already be on its way to you and once it arrives, you have 30 days to submit a passing test or face fines that can reach $10,000 per vehicle per day.
The good news is that staying compliant isn’t complicated when you work with someone who knows the process. A Clean Truck Check on your 2013-or-newer OBD-equipped truck takes a fraction of the time it takes to fight a registration hold and it keeps your truck on the road, your deliveries on schedule, and your operation running the way it should.
We don’t test passenger cars. We don’t handle older opacity-test trucks or fit your semi in between oil change appointments. Every part of what we do is built around one thing: OBD-based Clean Truck Check testing for model year 2013 and newer heavy-duty vehicles with a GVWR over 14,000 pounds.
We’re CARB-credentialed, and you can verify that yourself on CARB’s public tester registry at arb.ca.gov before you ever call us. We use only CARB-certified OBD equipment the kind that produces a result CARB will actually accept. We serve Los Angeles County, which means we know the freight corridors, the industrial zones near the City of Industry, and the commercial operators throughout the San Gabriel Valley who depend on their trucks to keep the business moving.
When we come to your location in San Gabriel, we bring everything needed to run the test and submit your results directly to CARB’s CTC-VIS database. No extra steps on your end. No wondering if the submission went through.
It starts with a quick conversation. You tell us what you’re running year, make, model, GVWR and we confirm whether your truck falls under the Clean Truck Check program. If it’s a 2013-or-newer diesel with a GVWR over 14,000 pounds and it operates in California, it almost certainly does. We’ll schedule a time to come to you your yard, your loading dock, your regular parking spot in San Gabriel or anywhere in LA County.
When we arrive, we connect our CARB-certified OBD diagnostic equipment to your truck’s ECU and pull the emissions data directly from the vehicle’s onboard system. This is not a visual inspection. It’s a data download and the equipment we use holds CARB Executive Orders, meaning the results are recognized and accepted by CARB’s system. The test itself typically takes less than an hour per vehicle, and we can work through multiple trucks in a single visit if you’re managing a fleet.
Once the test is complete, we submit your results electronically and directly to CARB’s CTC-VIS database. CARB transmits updated compliance status to DMV nightly, so your record gets updated quickly. You don’t log into a portal. You don’t upload anything. You get confirmation that the job is done and your truck stays on the road where it belongs.
Ready to get started?
The Clean Truck Check program applies specifically to diesel trucks that are model year 2013 or newer and have a GVWR over 14,000 pounds. If your truck doesn’t meet both of those criteria, it falls outside this program entirely. If it does meet both, compliance is not optional and it’s not satisfied just by paying the annual CARB fee.
This is where a lot of San Gabriel operators get tripped up. The $31.18 annual compliance fee and the OBD emissions test are two separate requirements. Paying the fee without submitting a passing test leaves your truck non-compliant in CARB’s database, which means DMV registration holds and potential fines are still on the table. Both steps have to be completed. We handle the test and the direct CTC-VIS submission the part that actually closes the loop in CARB’s system.
Currently, most OBD-equipped trucks require testing twice a year. Starting October 1, 2027, that increases to four times per year. For fleet operators running multiple vehicles on the I-10 and I-605 corridors through Los Angeles County, that’s a meaningful increase in compliance workload. Testing can also be submitted up to 90 days before your deadline, which gives you a real buffer time to identify a problem, address it, and retest before the deadline triggers any enforcement action. Getting ahead of the schedule now makes the quarterly requirement in 2027 a lot more manageable.
If your truck is a 2015 diesel with a GVWR over 14,000 pounds and it operates in California, yes it falls under CARB’s Clean Truck Check program. The program applies to model year 2013 and newer heavy-duty OBD-equipped diesel vehicles, and there are no local exemptions for San Gabriel or anywhere else in Los Angeles County. The requirement is statewide and uniform.
What matters is that both conditions are met: the model year has to be 2013 or newer, and the GVWR has to exceed 14,000 pounds. A 2015 diesel box truck used for food distribution, restaurant supply, or freight hauling in the San Gabriel Valley almost certainly qualifies. If you’re not sure about your specific vehicle, give us a call and we can confirm it before you schedule anything.
Paying the annual compliance fee and submitting a passing OBD emissions test are two completely separate requirements. One does not satisfy the other. If you paid the fee but haven’t had a credentialed tester run an OBD data download and submit the results to CARB’s CTC-VIS system, your truck is still showing as non-compliant in CARB’s database regardless of the payment.
This is one of the most common misunderstandings among truck operators in the San Gabriel Valley, and it’s an expensive one. Non-compliance can result in DMV registration holds that prevent renewal and fines that can reach $10,000 per vehicle per day. The fix is straightforward: schedule a Clean Truck Check with us, have the OBD test performed, and confirm that the results have been submitted directly to CTC-VIS. Once that’s done and CARB updates DMV, your compliance record reflects both requirements are met.
A Notice to Submit to Testing gives you 30 calendar days to submit a passing Clean Truck Check result to CARB. That window starts from the date on the notice, not the date you receive it so if it sat in a pile for a few days, your actual remaining time may be shorter than 30 days. This is not a situation where waiting to see what happens works in your favor.
CARB’s roadside monitoring systems actively screen heavy-duty diesel vehicles on corridors like the I-10 and I-605 both of which run directly through or adjacent to San Gabriel. If your truck was flagged as a potential high emitter on one of those routes, the NST is CARB’s formal enforcement response. We can come to your location in San Gabriel or anywhere in Los Angeles County, run the OBD test with CARB-certified equipment, and submit results directly to CTC-VIS the same day. The sooner you act, the more room you have to handle any issues before the deadline closes.
Yes, and that’s one of the main reasons fleet operators in the San Gabriel Valley prefer mobile testing over bringing trucks to a fixed location. When we come to your yard, your loading dock, or wherever your fleet is parked, we can work through multiple vehicles in a single visit. Each truck gets its own OBD data download with CARB-certified equipment, and each result is submitted individually and directly to CARB’s CTC-VIS database.
For fleet managers running vehicles on the I-10 corridor between San Gabriel and the City of Industry distribution hubs, this eliminates the cost and downtime of pulling trucks off routes and repositioning them to a testing facility. You stay productive. Your drivers stay on schedule. And your entire fleet’s compliance records get updated in CARB’s system without you having to coordinate multiple appointments across multiple providers. If your trucks have staggered compliance deadlines, we can work around that too testing can be submitted up to 90 days before a deadline, which gives you flexibility to batch vehicles efficiently.
Yes. CARB’s Clean Truck Check program applies based on where the vehicle operates, not just where it’s registered. If your truck is registered in another state but regularly operates in California running freight into the San Gabriel Valley, making deliveries along the I-10 corridor, or servicing clients in Los Angeles County it is subject to the same compliance requirements as a California-registered vehicle.
Out-of-state operators are sometimes caught off guard by this, particularly owner-operators running routes between the Inland Empire and the Ports of Los Angeles and Long Beach who pass through San Gabriel regularly. The threshold is the same: model year 2013 or newer, GVWR over 14,000 pounds, OBD-equipped diesel engine. If your truck meets those criteria and it’s operating on California roads, CARB considers it subject to the program. Getting compliant before an enforcement action or a roadside flag on the I-10 is significantly easier than responding to one after the fact.
A failed test doesn’t automatically mean a fine or a registration hold but it does mean you have work to do, and the timeline matters. If your truck fails the OBD emissions test, you’ll need to identify the underlying issue, have it repaired, and retest before your compliance deadline. This is exactly why testing up to 90 days before your deadline is worth doing it gives you a real window to address a problem without the pressure of an expiring deadline.
In practical terms, a failed Clean Truck Check usually points to a fault code or emissions-related issue stored in the truck’s ECU. That’s diagnostic information your mechanic can work with directly. Once repairs are complete, you schedule a retest with us, run the OBD data download again, and submit the passing result to CTC-VIS. For San Gabriel operators managing tight delivery schedules and routes through Los Angeles County, catching a potential failure early rather than at the deadline is the difference between a manageable repair and a truck that’s legally off the road during your busiest week.
Local Resources
Useful Links
Other Services we provide in San Gabriel
