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Your trucks need to stay on the road. That’s the entire point of what you do.
When CARB sends a Notice to Submit to Testing, you’ve got 30 days to get compliant or face a DMV registration hold. That truck sits. Your revenue stops. Your customer relationships take a hit.
Non-compliance isn’t just paperwork. It’s up to $10,000 per vehicle per day in fines. It’s roadside enforcement pulling you over. It’s ports and railyards turning your drivers away at the gate.
We test 2013 and newer diesel trucks with a GVWR over 14,000 pounds using CARB certified equipment. You get results submitted directly to the state. Your registration stays clear. Your trucks keep moving.
Most vehicles need testing twice a year. Starting in 2027, OBD-equipped trucks will need it four times a year. The requirements aren’t getting easier, and the enforcement isn’t getting looser.
All SMOG Motors focuses exclusively on heavy-duty vehicle compliance for trucks operating in California. We’re not a general smog shop trying to figure out your diesel engine on the fly.
Claremont sits right in the heart of Southern California’s logistics corridor. You’re running freight through Ontario, servicing the Inland Empire, or moving goods between LA and the desert. Your trucks are working vehicles, and you need testing that doesn’t eat up half a day.
We’re CARB credentialed testers. That’s not optional or a nice-to-have. It’s the legal requirement. Every test we run meets state standards because we’ve completed the training, passed the exams, and stay current on the regulations that actually apply to your equipment.
You bring your truck in, and we connect to the OBD system using CARB certified diagnostic equipment. We’re pulling data directly from your engine’s computer to check emissions performance.
The test itself doesn’t take long. We’re looking at fault codes, readiness monitors, and whether your emissions control systems are functioning the way CARB requires. If everything checks out, we submit passing results directly to the state database.
You can test up to 90 days before your deadline. That gives you a buffer. If something fails, you’ve got time to make repairs and retest without scrambling at the last minute.
If your truck doesn’t pass, you’ll know exactly what failed and why. Most issues are fixable. Some are sensor-related. Others point to actual emissions system problems that need attention. Either way, you’re not guessing.
Once you pass, CARB gets the results electronically. Your compliance clock resets. Your registration stays clean. You’re good until the next testing cycle.
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You’re paying for legally valid testing performed by credentialed testers using state-approved equipment. That’s the baseline. Without those three things, the test doesn’t count.
You’re also paying to avoid the much bigger costs of non-compliance. CARB collected over $21.5 million in citations in 2022 alone. Those weren’t all big fleets with legal teams. Plenty were owner-operators and small companies who missed a deadline or didn’t realize their truck was flagged.
California handles 40% of U.S. imports. The ports, the railyards, the distribution centers—they’re all checking compliance now. A truck that’s out of compliance doesn’t just risk a fine. It risks getting turned away from the job.
Claremont’s proximity to major freight routes makes this even more critical. You’re not running local deliveries in a vacuum. You’re part of a supply chain that’s increasingly monitored for emissions compliance at every checkpoint.
The testing requirement applies to nearly all heavy-duty diesel and alternative fuel vehicles over 14,000 pounds GVWR operating in California. If your truck is model year 2013 or newer, you’re in the program. If it’s older or lighter, this doesn’t apply to you.
If your truck is model year 2013 or newer, runs on diesel or alternative fuel, and has a GVWR over 14,000 pounds, it needs testing under California’s Clean Truck Check program. This applies to nearly all heavy-duty trucks operating in the state.
You’ll receive a Notice to Submit to Testing from CARB when your truck is due. Most vehicles need testing twice a year. The notice gives you 30 days to submit passing results.
You can also check your status through CARB’s online portal if you’re not sure whether your truck is flagged. Don’t wait for a registration hold to find out. Those happen automatically when deadlines pass.
You’ll get a detailed report showing exactly what failed. Most failures are related to fault codes, readiness monitors that aren’t set, or emissions control components that aren’t working properly.
You’ll need to make the necessary repairs and come back for a retest. The good news is you can test up to 90 days before your deadline, so a failure doesn’t automatically mean you’re out of compliance yet.
If you’re within the 30-day window and you fail, you need to move fast. Get the repairs done and retest before the deadline. Missing it triggers a DMV registration hold, and that takes your truck off the road until you’re compliant.
Yes. You can submit passing test results up to 90 days before your compliance deadline. This is one of the smartest moves you can make.
Testing early gives you a cushion. If something fails, you’re not in panic mode trying to find a repair shop and get back in for a retest before CARB locks your registration.
A lot of fleet operators build this into their maintenance schedule. They test during regular service intervals so they’re never cutting it close. It’s cheaper and less stressful than dealing with a compliance crisis.
CARB can fine you up to $10,000 per vehicle per day for non-compliance. That’s not a theoretical maximum. They’ve collected tens of millions in citations over the past few years.
Beyond fines, non-compliant trucks get hit with DMV registration holds. That means the truck can’t legally operate until you’re compliant. You’re paying for the truck, the insurance, and the driver, but you’re not generating revenue.
There’s also the operational cost. Ports and railyards are checking compliance. If your truck gets turned away, you’ve lost the load, damaged the customer relationship, and still have to solve the compliance problem before you can work again.
Yes. Heavy-duty trucks with 2013 and newer diesel engines require OBD-based emissions testing under CARB’s Clean Truck Check program. This isn’t the same as a regular smog check for passenger vehicles.
The testing has to be done by CARB credentialed testers using CARB certified diagnostic equipment. Not every smog shop is set up for this. You need a facility that specifically handles heavy-duty vehicle compliance.
The test pulls data directly from your truck’s onboard diagnostics system. We’re checking emissions performance, fault codes, and whether your emissions control systems meet CARB standards. It’s a different process with different equipment.
Most heavy-duty trucks need CARB compliance testing twice a year right now. CARB sends notices based on your registration cycle, and you’ve got 30 days from the notice to submit passing results.
Starting in October 2027, OBD-equipped vehicles will need testing four times a year. The requirements are increasing, not decreasing, as California tightens emissions standards.
You’ll get notified by CARB when testing is due, but you don’t have to wait for the notice. You can test up to 90 days early. A lot of operators just build it into their regular maintenance schedule so they’re never behind.
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