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If your truck is model year 2013 or newer with a GVWR over 14,000 pounds, you’re required to pass a Clean Truck Check test twice a year right now, and four times a year starting October 1, 2027. That’s not a future problem. It’s a current one, and the consequences of missing it are real: DMV registration holds, fines up to $10,000 per vehicle per day, and a truck that can’t legally operate in California.
For operators running freight in and out of the City of Industry the industrial hub sitting right on Hacienda Heights’ northern border downtime isn’t just inconvenient. It’s a direct hit to your income. The SR-60/I-605 interchange is one of the busiest freight nodes in Southern California, and every hour a truck sits idle waiting on a compliance issue is money you’re not making. We offer mobile testing, which means our tester comes to your yard, your lot, or wherever your truck is staged in Hacienda Heights or the surrounding area not the other way around.
The other thing that matters here: the test has to count. An invalid test from an uncredentialed provider or uncertified equipment leaves you right back where you started still non-compliant, still exposed. All of our credentials are publicly listed on CARB’s official tester registry at arb.ca.gov. You can verify that before you ever pick up the phone.
We test only heavy-duty trucks that are model year 2013 or newer with a GVWR over 14,000 pounds. That’s the entire scope of what we do. No passenger car smog checks, no opacity testing for older equipment, no general automotive work. Every credential we hold, every piece of equipment we carry, and every test we run is built around one thing: the CARB Clean Truck Check program.
We serve Los Angeles County, which puts us squarely in the territory that matters most to operators in and around Hacienda Heights the City of Industry yards, the SR-60 staging areas, the industrial corridor near Turnbull Canyon Road. We know this area because we work in it every day.
Our credentials are publicly verifiable on CARB’s “Available for Hire Credentialed Testers” list. We use only CARB-certified OBD equipment with Executive Order approval, and we submit every result directly to CTC-VIS before we leave your location. You don’t have to wonder if it went through. It did.
It starts with a call or booking. You tell us where your truck is your City of Industry yard, a staging lot near SR-60, your property in Hacienda Heights and we schedule a time that works around your operation, not ours. We come to you. No drop-off, no waiting room, no driving a loaded truck across the county to sit in a line.
When we arrive, we connect our CARB-certified OBD equipment directly to your truck’s diagnostic port and download the ECU data. This is what CARB requires: a direct read of your truck’s onboard systems using approved equipment. The test itself is straightforward what takes time is making sure it’s done right. We’re checking that the equipment is certified, the tester is credentialed, and the data being submitted is clean and complete.
Once the test is done, we submit your results directly to CARB’s CTC-VIS database electronically, on the spot. You don’t log in. You don’t upload anything. You don’t follow up. CARB transmits compliant VINs to DMV on a nightly basis, so the 3–5 business day DMV update window starts the moment we hit submit not the moment you figure out a portal. For fleet operators in the City of Industry corridor managing multiple trucks, we can run several vehicles in a single visit and submit all results before we leave your yard.
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The Clean Truck Check program applies to diesel and alternative-fuel heavy-duty 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 both the model year and the weight threshold this program doesn’t apply to you. We test only vehicles that fall within this scope. We don’t stretch our service to cover older equipment or lighter vehicles, because that’s not what CARB’s OBD-based HD I/M program requires.
For owner-operators and fleet managers working out of the City of Industry the industrial cluster directly north of Hacienda Heights along SR-60 this program is already in full enforcement. The first compliance deadline passed January 1, 2025. If you haven’t tested yet, you’re already behind. If you have tested but used a provider whose credentials you can’t verify, it’s worth confirming your status in CTC-VIS before your next DMV renewal comes up.
One detail that catches a lot of operators off guard: the $31.18 annual compliance fee you pay to CARB is separate from the emissions test itself. Paying the fee does not mean your truck has been tested. Both are required. The South Coast Air Quality Management District headquartered in nearby Diamond Bar operates in one of the most heavily regulated air basins in the country, and enforcement in this region is not theoretical. If you’ve received a Notice to Submit to Testing, you have 30 calendar days to submit a passing result. Call us before that window closes.
Yes and this is one of the most common questions we get from operators working in and around the City of Industry corridor. The Clean Truck Check program is a California state requirement enforced by CARB. It applies to any heavy-duty vehicle that is model year 2013 or newer with a GVWR over 14,000 pounds and operates on California public roads regardless of where it’s based, where it’s registered, or which facility it services.
If your truck hauls freight in and out of warehouses or distribution centers in the City of Industry, travels SR-60 or I-605, or stages anywhere in Los Angeles County near Hacienda Heights, it’s subject to this program. The City of Industry is one of the most active logistics hubs in Southern California, with over 3,000 businesses and 67,000 jobs and the trucks moving through that corridor are exactly the vehicles CARB had in mind when the program was designed. Being based in Hacienda Heights or operating from a nearby yard doesn’t change the obligation. If the truck meets the model year and weight threshold, it needs to be tested.
Right now, most OBD-equipped heavy-duty vehicles are required to submit a passing Clean Truck Check test twice per year semi-annually. That schedule is set to change. Beginning October 1, 2027, the testing frequency increases to four times per year, or quarterly. For fleet operators managing multiple trucks in the City of Industry and Hacienda Heights area, that means the testing burden doubles in just a few years.
The compliance calendar is tied to your vehicle’s DMV registration renewal date, not a fixed calendar date, so different trucks in your fleet may have different deadlines. CARB also has the authority to issue a Notice to Submit to Testing at any point if your vehicle is flagged as a potential high emitter and that notice gives you exactly 30 calendar days to submit a passing result, regardless of where you are in your normal compliance cycle. Getting a reliable testing relationship in place now, before quarterly testing kicks in, is the kind of thing that pays off when the schedule gets tighter.
This is one of the most common misconceptions in the program, and it catches operators off guard at DMV renewal time. The $31.18 annual compliance fee which is CPI-indexed and paid directly to CARB through the CTC-VIS portal is a program registration fee. It is not the emissions test. Paying it does not mean your truck has been tested or that you’re compliant with the testing requirement.
The emissions test is a separate step performed by a CARB-credentialed tester using CARB-certified OBD equipment. Both are required. Many truck owners in the Hacienda Heights and City of Industry area have paid the fee, assumed they were done, and then discovered a DMV registration hold because the test was never submitted. If you’re unsure whether your truck’s test is on file, you can check your vehicle’s status directly in the CTC-VIS system using your VIN. If there’s no passing test on record, the fee alone won’t clear the hold.
A Notice to Submit to Testing, or NST, means CARB has flagged your vehicle as a potential high emitter based on data in their system. When you receive one, you have exactly 30 calendar days to submit a passing Clean Truck Check test. That clock doesn’t pause for your delivery schedule, your fleet’s availability, or how hard it is to find a credentialed tester on short notice.
The most important thing you can do is act immediately not on day 28. We serve the Hacienda Heights and City of Industry corridor with mobile testing, so we can come to your location rather than requiring you to bring the truck somewhere. We submit results directly to CTC-VIS on the day of the test, which starts the DMV update window right away. If your truck is already showing a DMV registration hold, a passing test submission is what initiates the clearing process but that 3–5 business day window only starts once the result is in CARB’s system. Don’t wait.
Yes, and for fleet operators running equipment out of the City of Industry or staging yards near SR-60, this is usually the most efficient way to handle compliance. We can test multiple vehicles in a single mobile visit one scheduling call, one trip to your location, and all results submitted directly to CTC-VIS before we leave your yard.
There’s no need to schedule separate appointments for each truck or stagger testing across multiple days. We bring CARB-certified OBD equipment, connect to each vehicle’s diagnostic port, download the ECU data, and submit each result individually and electronically on-site. For a fleet manager tracking compliance deadlines across 10, 20, or more trucks all potentially on different renewal cycles a single-visit approach removes a significant amount of administrative friction. If you’re managing a larger fleet in the Los Angeles County area, reach out and we can work through the scheduling together to make sure nothing falls through the cracks before a deadline hits.
It does, and this surprises a lot of operators. The Clean Truck Check program applies to any qualifying heavy-duty vehicle operating on California public roads including trucks registered in other states. If your truck is model year 2013 or newer, has a GVWR over 14,000 pounds, and it’s running routes through California, it’s subject to CARB’s HD I/M testing requirements.
This is particularly relevant in the Hacienda Heights and City of Industry area, where freight movement connects to the Port of Long Beach roughly 27.5 miles southwest and extends into the broader Southern California distribution network. Carriers running interstate routes that pass through Los Angeles County are not exempt simply because their trucks are registered elsewhere. If you’re an out-of-state operator whose trucks regularly run California routes and you haven’t addressed Clean Truck Check compliance, the exposure is real. CARB transmits non-compliant VINs to DMV nightly, and enforcement in the South Coast Air Basin one of the most regulated air quality zones in the country is active and ongoing.
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