- Deadline approaching? Call (858) 257-8576 Now
Check Out Our Reviews!
When your truck is flagged non-compliant, everything stops. The load doesn’t move. The revenue doesn’t come in. And if there’s a DMV registration hold sitting on your VIN, you’re not just delayed you’re grounded until it’s cleared. That’s the reality for a lot of owner-operators and small fleet managers running routes through the Arrow Highway corridor and into the City of Industry.
What changes after a passing Clean Truck Check test isn’t just a box checked on a form. CARB transmits your compliant VIN to DMV nightly, so the hold clears. Your CTC-VIS account reflects the result. You’re back to running loads through the I-10 and I-210 without a compliance issue hanging over every weigh station and roadside inspection.
Vincent sits right between two of the most industrially active corridors in Los Angeles County. The trucks operating out of this area into Irwindale, down into the City of Industry, west on Arrow Highway toward Baldwin Park are exactly the trucks CARB is watching. Getting compliant now, before enforcement catches up to you, is the move that keeps your operation running on your schedule instead of CARB’s.
We do one thing: Clean Truck Check OBD testing for heavy-duty trucks that are model year 2013 or newer with a GVWR over 14,000 pounds. That’s it. No passenger cars, no opacity tests, no generalist shop trying to do everything at once. Just the specific test your truck actually needs under CARB’s HD I/M program performed by a credentialed tester using CARB-certified OBD equipment.
Our credential is real and verifiable. CARB publishes a public list of approved testers at arb.ca.gov you can look up All SMOG Motors before you ever book. In a market where uncredentialed operators have left truck owners in Vincent and across the San Gabriel Valley holding tests that didn’t count, that kind of transparency matters.
Our service is fully mobile. Whether your truck is staged at a yard near Irwindale, sitting at a loading dock in the City of Industry, or parked at a home address on either side of Arrow Highway in Vincent, we come to the truck. You don’t reposition the vehicle. You don’t lose a half-day moving equipment. The test happens where the truck already is, and results go directly into CARB’s CTC-VIS database submitted by our tester, not handed off to you to figure out.
You call or book online. We confirm your truck’s model year and GVWR to make sure it qualifies the Clean Truck Check program only applies to diesel trucks that are 2013 or newer and over 14,000 pounds. If your truck fits, a time and location get locked in. That location is wherever your truck already is: a yard off Arrow Highway, a staging lot near the I-10, a dock in the City of Industry, or your home address in Vincent.
Our tester arrives with CARB-certified OBD equipment and connects directly to your truck’s onboard diagnostic system. The test reads the engine’s emissions data no tailpipe probe, no visual inspection theater. It’s a data pull from the ECU, verified against CARB’s compliance thresholds for your specific engine model year. The whole process typically takes under an hour per vehicle.
Once the test is complete, results are submitted electronically to CARB’s CTC-VIS database on the spot by our tester, not by you. You don’t need to log into a portal, upload anything, or follow up to confirm it went through. Within a few business days, your compliant VIN status transmits from CARB to DMV. If there was a registration hold, that’s when it clears. If you were testing proactively, you’re simply ahead of the deadline which, given that CARB’s enforcement activity runs along the exact freight corridors Vincent operators use every day, is exactly where you want to be.
Ready to get started?
The Clean Truck Check is a CARB-mandated OBD emissions test for heavy-duty diesel vehicles that are model year 2013 or newer with a GVWR over 14,000 pounds. If your truck doesn’t meet both of those criteria model year and weight this program doesn’t apply to it. We test only trucks that fall within that scope, which means every appointment is handled by someone who knows exactly what the test requires for your vehicle type.
Right now, qualifying trucks are required to test twice per year. Starting October 1, 2027, that increases to four times per year. If you’re running one truck or managing a small fleet through the San Gabriel Valley’s industrial corridor, that’s a significant compliance calendar to stay on top of. Establishing a reliable testing relationship now before the schedule gets heavier is a straightforward way to avoid the scramble later.
One thing worth knowing if you’re in Vincent or the surrounding unincorporated LA County area: paying the annual CTC compliance fee does not satisfy the testing requirement. The $31.18 annual fee and the OBD emissions test are two separate obligations with separate deadlines. A lot of truck owners in this area have paid the fee and assumed they were done they weren’t. If you’re not sure whether your truck has a passing test on file in CTC-VIS, that’s the first thing worth checking. We can tell you exactly where your truck stands and get the test scheduled the same week.
If your truck is a diesel, model year 2013 or newer, and has a GVWR over 14,000 pounds, then yes CARB’s Clean Truck Check program applies to it, regardless of whether you’re based in an incorporated city or an unincorporated community like Vincent. The program is a state-level requirement, which means it doesn’t matter that Vincent has no independent city government or local compliance office. The CARB standard applies uniformly across all of Los Angeles County, and trucks operating on California public roads including the routes through Irwindale, the City of Industry, and along the I-10 and I-210 are subject to enforcement.
Out-of-state trucks are included too. If a truck is registered in Arizona or Nevada but makes regular runs into the San Gabriel Valley, it still needs to comply with Clean Truck Check requirements while operating in California. The registration state doesn’t change the obligation.
A failed OBD test means the truck’s onboard diagnostic system flagged one or more emissions-related fault codes that exceed CARB’s compliance thresholds. The most common causes are issues with the diesel particulate filter, the selective catalytic reduction system, or the EGR valve components that tend to show stress in high-heat inland operating environments like the San Gabriel Valley, where summer temperatures regularly push past 95°F and trucks are running hard on freight routes all day.
A failed test doesn’t immediately result in a fine. What it does is start a clock. You’ll need to diagnose the issue, complete the necessary repairs, and retest before your compliance deadline. This is exactly why testing proactively rather than waiting until the last week before a deadline is worth it. You have time to fix the problem. If you’re testing because you already received a Notice to Submit to Testing from CARB, you have 30 days from the date of that notice. That’s enough time to act, but not enough time to drag your feet.
You can check your truck’s compliance status directly in CARB’s CTC-VIS system at truckcheckvis.arb.ca.gov. Log in with your account credentials, pull up your VIN, and look at the test history. If a passing test was submitted by a credentialed tester using a CARB-certified OBD device, it will show there with a date and result. If it’s blank, or if the most recent test is older than your current compliance window, your truck is not in good standing.
A lot of truck owners in Vincent and the surrounding Covina area have discovered this the hard way usually at DMV renewal when a registration hold surfaces. The hold means CARB has flagged the VIN as non-compliant and transmitted that status to DMV. At that point, the registration won’t renew until a passing test is on file. We can check your VIN status before scheduling, so you’re not guessing about where you stand going into the appointment.
No and this is the most common misconception in the program. The annual compliance fee, currently $31.18 per vehicle for 2025, is a registration requirement. It does not satisfy the emissions testing requirement. Both are mandatory, and they operate on separate deadlines. Paying the fee without submitting a passing OBD test leaves your truck legally non-compliant, even though money has changed hands with CARB.
This confusion has caught a significant number of truck owners off guard, particularly in unincorporated communities like Vincent where there’s no local city office fielding compliance questions. The fee gets paid online, the confirmation email arrives, and it’s easy to assume the obligation is fulfilled. It isn’t. If you paid the fee but haven’t had an OBD test submitted by a CARB-credentialed tester, your truck still needs to test and depending on your vehicle’s compliance window, that deadline may already be close. A quick check of your CTC-VIS account will show you exactly where things stand.
Right now, trucks subject to the OBD testing requirement diesel, 2013 or newer, GVWR over 14,000 pounds are required to test twice per year, on a semi-annual schedule. That requirement increases to four times per year starting October 1, 2027, when the program shifts to quarterly testing. For a fleet manager running multiple trucks through the City of Industry or the Arrow Highway corridor, that’s a meaningful jump in compliance workload.
The practical implication is that building a reliable testing relationship now, while the schedule is still semi-annual, makes the transition to quarterly testing significantly easier. You’ll already know your tester, your tester will already know your trucks and your yard, and the logistics of scheduling four tests per year per vehicle won’t feel like starting from scratch. Operators who wait until 2027 to figure out their compliance process will be doing it under more pressure, with more tests due, and with higher demand on credentialed testers across the region.
Yes our entire service is mobile. We come to wherever your truck is located in the Vincent area and throughout Los Angeles County. That means your yard, your loading dock, your staging lot, or your home address whether you’re on the Covina side of Arrow Highway with a 91722 zip code or on the Azusa side with a 91702. You don’t move the truck to a shop. Our tester brings the CARB-certified OBD equipment to you.
For owner-operators running a single truck out of a home address in Vincent, this matters because repositioning a semi to a fixed location costs time and fuel and if the truck is already loaded or staged for a morning run, moving it isn’t always practical. For small fleet managers with trucks at a yard near Irwindale or the City of Industry, mobile testing means multiple vehicles can be tested in sequence at one location without disrupting the day’s dispatch schedule. Either way, the test gets done where the truck already is, and results go straight into CTC-VIS before our tester leaves the site.
Local Resources
Useful Links
Other Services we provide in Vincent
