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You avoid the $10,000-per-vehicle-per-day fines that CARB can hit you with. You keep your DMV registration active so your trucks don’t get pulled off the road. You stay ahead of the semi-annual Clean Truck Check deadlines that started January 2025 and only get stricter from here.
If you run 2013 or newer diesel trucks over 14,000 pounds GVWR in California, this isn’t optional anymore. Freight facilities can deny entry to non-compliant vehicles. Your registration gets blocked if you miss testing deadlines. The state tracks every truck, and the enforcement is real.
CARB compliant means your trucks pass the required OBD emissions test, your paperwork is filed with the state, and your business stays operational. No surprises. No downtime. No scrambling when a notice shows up with a 30-day deadline.
This is about protecting your ability to work. Everything else—routes, contracts, payroll—depends on your trucks being legal and on the road.
We’ve been handling CARB compliance testing for over 15 years at All SMOG Motors. We’re state-certified, which means the tests we run are the ones CARB recognizes and the DMV accepts. Not every shop can say that.
We work with fleets, owner-operators, and businesses throughout Valinda and the surrounding Los Angeles County area. You’re in the middle of one of the busiest freight corridors in the country, and we know what that means for your schedule. Trucks need to move, not sit in a bay waiting for testing.
We bring the equipment to you. Mobile testing at your yard, your shop, or wherever your trucks are parked. Same-day appointments available, results filed directly with the state, and you get confirmation the moment it’s done.
First, we confirm your truck qualifies. Model year 2013 or newer, diesel engine, GVWR over 14,000 pounds. If it doesn’t meet those specs, you don’t need this test.
We plug into your truck’s OBD system and run the emissions diagnostics. The test takes about 15 minutes per vehicle. We’re checking what the state requires: emissions data, fault codes, system readiness. If your truck passes, we submit the results to CARB electronically and you get a compliance certificate on the spot.
If something comes back flagged, we tell you exactly what the issue is and what needs to happen before you can retest. No runaround. You’ll know if it’s a sensor, a regen issue, or something else before we leave.
Once you pass, you’re compliant for six months under the current semi-annual schedule. We can set reminders so you don’t miss your next test. The state doesn’t send friendly warnings—they send notices with deadlines and consequences. We help you stay ahead of that.
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You get certified OBD emissions testing performed by our state-credentialed technicians. The equipment we use meets CARB specifications, and the results go straight into the state system. No paper forms, no waiting to see if it was filed correctly.
We handle the compliance paperwork and submit everything to CARB on your behalf. You receive a certificate showing your truck passed and your compliance status is current. If you’re managing multiple vehicles, we can coordinate fleet testing and provide consolidated reporting so you know where every truck stands.
Valinda sits right in the heart of LA County’s logistics network. The ports, the warehouses, the distribution centers—they’re all tightening up on who gets through the gate. CARB compliance isn’t just about avoiding state penalties anymore. It’s about maintaining access to the facilities that keep your business running.
We also provide retest support if a vehicle doesn’t pass the first time. If there’s a compliance issue we can help resolve or a penalty notice you need help navigating, we’ve worked with CARB directly and know how to handle those situations. You’re not figuring this out alone.
Only heavy-duty diesel trucks that are model year 2013 or newer and have a gross vehicle weight rating over 14,000 pounds. That’s the threshold CARB set when they rolled out the Clean Truck Check program.
If your truck is older than 2013, you’re not subject to this requirement. If it’s under 14,000 pounds GVWR, same thing—you don’t need it. But if you’re running newer heavy-duty diesels, this applies to you, and it’s mandatory as of October 2024.
The testing uses OBD diagnostics, which only became standard on heavy-duty trucks starting with 2013 models. That’s why older trucks aren’t included. CARB is focused on the emissions systems that can be monitored electronically, and those didn’t exist in the older fleet.
Right now, it’s semi-annual—twice a year. That schedule started January 1, 2025. Before that, it was annual. In October 2027, it increases again to quarterly, which means four times a year.
CARB sends testing notices to the address on file with the DMV. When you get a notice, you have 30 days to complete the test and submit results. If you miss that deadline, your registration can be blocked and penalties start piling up fast.
You can also test early if you want to stay ahead of the deadlines. Some fleet operators schedule testing every five months just to avoid cutting it close. We can help you set up a schedule that works with your operation and keeps you compliant without the last-minute stress.
You’ll need to fix whatever caused the failure and then retest. The OBD system will show fault codes or emissions data that’s out of range. We’ll tell you exactly what the issue is—whether it’s a sensor malfunction, a regen problem, or something with the emissions control system.
Most failures are fixable. Sometimes it’s as simple as completing a forced regen or replacing a faulty sensor. Other times it requires more involved repairs. Either way, you’ll know what you’re dealing with before you take the truck to a mechanic.
Once the repairs are done, you retest. If you pass, we submit the results to CARB and you’re back in compliance. If you’re dealing with a Notice to Submit Testing and you’re running up against the 30-day deadline, let us know. We’ve helped operators navigate extensions and penalty reductions when there are legitimate repair delays.
Yes, and the fines are severe. CARB can assess up to $10,000 per vehicle per day for non-compliance. That’s not a scare tactic—that’s the actual penalty structure in the regulations.
On top of fines, the DMV can block your registration. That means your truck can’t legally operate until you get compliant. If you’re caught operating a non-compliant vehicle, you’re looking at additional enforcement action and potential impoundment.
Freight facilities are also starting to enforce compliance at the gate. If your truck isn’t current on Clean Truck Check testing, you can be denied entry. That’s a business problem, not just a regulatory one. You lose loads, you lose contracts, and your reputation takes a hit. The cost of staying compliant is a fraction of what you’ll pay if you ignore it.
Yes. We bring the testing equipment to your location—your yard, your facility, wherever your trucks are parked. You don’t have to pull vehicles off jobs or drive them across town to a testing center.
Mobile testing saves you time and keeps your operation moving. We can test multiple trucks in one visit if you’re running a fleet. Same-day appointments are available, and we work around your schedule, not the other way around.
The test itself takes about 15 minutes per truck. We plug into the OBD port, run the diagnostics, and submit the results to CARB electronically. You get your compliance certificate on-site, and you’re done. If you’re in Valinda or anywhere in the LA County area, we can get to you quickly and handle everything without disrupting your day.
Testing typically runs around $150 per truck, though pricing can vary depending on whether you need mobile service or if you’re testing multiple vehicles at once. There’s also an annual compliance fee of $31.18 per vehicle that CARB charges separately—that goes directly to the state, not to the testing provider.
If you’re managing a fleet, we offer volume pricing that brings the per-vehicle cost down. Mobile service is included in our standard rate because we know most operators can’t afford to take trucks out of service just to drive them to a testing location.
The real cost isn’t the test—it’s what happens if you skip it. A single day of non-compliance penalties can cost you $10,000 per truck. A blocked registration can cost you a contract. The testing fee is the cheapest part of staying legal in California, and it’s a straightforward business expense that protects everything else you’ve built.
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