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Your trucks stay on the road. That’s what matters.
When your 2013 or newer heavy-duty vehicle passes Clean Truck Check testing, the DMV doesn’t put a hold on your registration. You don’t get hit with fines that start at $10,000 per vehicle per day. Your business keeps moving.
CARB diesel compliance isn’t optional anymore. Starting January 2025, every commercial vehicle over 14,000 pounds GVWR needs to test twice a year. Miss a deadline and you’re looking at enforcement action from CARB and CHP, plus registration blocks that take your trucks out of service.
You can submit passing test results up to 90 days before your compliance deadline. That gives you time to handle repairs if something comes back flagged. The test itself scans your truck’s OBD system using CARB-approved diagnostic equipment, and results go straight into the state database.
If you’re running a fleet in Whittier, you already know how tight margins are. Downtime costs you loads, and penalties stack up fast. Getting tested on time means you control the schedule instead of scrambling when the DMV sends a notice.
We’re a CARB credentialed testing facility in Whittier. We’re trained, certified, and equipped to handle Clean Truck Check testing for 2013 and newer diesel trucks with OBD systems.
Whittier sits right in the heart of Southern California’s logistics corridor. Trucks move through here constantly, and CARB enforcement is active. We know what fleet operators and owner-operators deal with because we see it every day.
We’re not trying to upsell you on services you don’t need. You need a passing CARB compliant test, proper documentation, and fast turnaround. That’s what we do.
You bring in your 2013 or newer semi truck with a GVWR over 14,000 pounds. We verify it has the right OBD connectors—J1937 or J1979.
Our CARB credentialed tester connects the diagnostic equipment to your truck’s OBD system. The scan pulls engine data and checks emissions control systems against California Air Resources Board standards. This isn’t a visual inspection or a tailpipe test. It’s a data scan.
If your truck passes, we submit the results directly to the state database. You get documentation, and your compliance deadline is satisfied. The DMV sees the passing result and your registration stays clear.
If the test comes back “not ready” or shows a failure, you’ll know exactly what needs attention. You have 30 days from receiving a Notice to Submit to Testing to get repairs done and retest. Once repairs are complete, you come back and we run it again.
The whole process takes less than an hour for a passing truck. You’re not sitting around all day. You’re in, tested, documented, and back on the road.
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This service applies specifically to trucks that are model year 2013 or newer and have a GVWR over 14,000 pounds. Older trucks and lighter vehicles aren’t part of the Clean Truck Check program.
Starting in 2025, you’re looking at semiannual testing—twice a year. By October 2027, that increases to quarterly testing for OBD-equipped vehicles. CARB isn’t backing off these requirements. They’re expanding them.
In Whittier and across California, enforcement is real. CHP can pull you over and check compliance status. CARB can issue citations. The DMV will block registration renewals. If you hire out your trucks, shippers can get fined $10,000 for each year they used a non-compliant carrier.
You can test up to 90 days before your deadline. That window exists so you’re not scrambling at the last minute if repairs are needed. Use it.
Our testing covers the full OBD diagnostic scan required by CARB. You get a compliance certificate, proper reporting to the state, and documentation you can keep for your records. If you’re managing a fleet, we offer volume pricing—$149 per truck for 2-5 vehicles, $129 per truck for 6 or more.
Whittier’s proximity to major freight routes means your trucks need to stay compliant whether they’re local or running interstate. California requires proof of compliance for any truck operating in the state, even if it’s registered elsewhere.
Only trucks that are model year 2013 or newer and have a gross vehicle weight rating over 14,000 pounds need Clean Truck Check testing. Your truck also needs to have OBD connectors—either J1937 or J1979.
If your truck is older than 2013 or weighs less than 14,000 pounds GVWR, this requirement doesn’t apply to you. CARB designed the program specifically for newer heavy-duty diesel and alternative fuel vehicles with onboard diagnostic systems.
The testing requirement started October 1, 2024, and it’s not going away. Starting in 2025, testing happens twice a year. By 2027, it increases to four times a year for OBD-equipped vehicles.
Right now, testing happens on a schedule set by CARB based on your vehicle’s compliance deadline. Starting January 1, 2025, all qualifying trucks need semiannual testing—that’s twice per year.
By October 2027, the requirement increases again to quarterly testing, which means four times per year. CARB is phasing this in gradually, but the direction is clear: more frequent testing is coming.
You’ll receive notices from the DMV with your specific compliance deadlines. You can submit passing test results up to 90 days before that deadline, which gives you a buffer if repairs are needed. Don’t wait until the last week. If your truck fails or comes back “not ready,” you only have 30 days after receiving a Notice to Submit to Testing to fix it and retest.
If your truck fails or the system shows “not ready,” you’ll get a report showing exactly what flagged. You’re not stuck—you just need to make repairs and come back for a retest.
Once you receive a Notice to Submit to Testing from CARB, you have 30 days to complete repairs and submit a passing test. That’s not a lot of time, so don’t sit on it. Get the repairs done and schedule your retest as soon as possible.
After repairs, we run the diagnostic scan again. If it passes, we submit the results to the state and you’re compliant. If it still shows issues, you’ll need more work done before you can pass. The key is addressing problems early. Waiting until your registration renewal is due puts you at risk for DMV holds and fines.
Individual truck testing starts at $199. If you’re bringing in multiple trucks, pricing drops—$149 per truck for 2-5 vehicles, and $129 per truck for 6 or more.
That covers the full OBD diagnostic scan, compliance certification, and submission of results to the state database. You’re not paying for unnecessary add-ons. You’re paying for the test CARB requires and the documentation you need to keep your registration clean.
Compare that to the cost of non-compliance: $10,000 per vehicle per day in potential fines, plus DMV registration holds that take your trucks out of service. One missed deadline can cost you more than a year’s worth of testing. The test is cheap insurance against penalties that can shut down your operation.
Yes. You can submit passing test results up to 90 days before your compliance deadline. That’s actually the smart move.
Testing early gives you a cushion if something comes back flagged. If your truck needs repairs, you have time to get them done and retest without risking a missed deadline. If you wait until the last minute and fail, you’re under pressure to fix it fast or face penalties.
CARB built in that 90-day window specifically so fleet operators and owner-operators aren’t scrambling. Use it. Get tested early, handle any issues while you have time, and keep your trucks on the road without interruption.
Yes. If your truck operates in California—even if it’s registered in another state—it needs to comply with CARB regulations. That includes Clean Truck Check testing for 2013 and newer trucks over 14,000 pounds GVWR.
California doesn’t give out-of-state operators a pass. CARB and CHP enforce compliance on any qualifying truck driving on California roads. If you’re running interstate routes that pass through California, you need proof of compliance in the state database.
The requirement applies whether you’re based here or just passing through. Get tested, get documented, and avoid enforcement action. California’s regulations are stricter than most states, and they enforce them actively, especially in high-traffic areas like Whittier and the surrounding logistics corridors.
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