Why waste time shuffling trucks to a test site? With CTC Direct, Clean Truck Check is at your finger tips. CTC Direct handles everything on-demand—fast, accurate, and hassle-free—so your fleet stays compliant without losing valuable road time.
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We know every minute your trucks sit is money lost. That’s why CTC Direct brings testing directly to your lot, your yard, or wherever your fleet is parked. No waiting in lines. No detours. Just simple, convenient testing that fits your schedule.
Officially approved by the California Air Resources Board to ensure accurate, reliable, and compliant emissions testing every time.
Tested and trusted by drivers, our service is built around real-world convenience, reliability, and compliance peace of mind.
At CTC Direct, we make compliance simple, fast, and reliable. Our goal is to take the stress out of California’s Clean Truck Check program so you can stay focused on keeping your business moving.
Video ShowcaseGet your compliance test done in minutes, not hours, anywhere with out the hassle of long lines and waiting.
Our process is designed to save you time and hassle—no guesswork, no headaches.
No hidden fees, no surprises—just straightforward pricing you can count on. Only $75 per test, when you need it. Free retest until you pass
Whether you manage one truck or hundreds, our service is tailored to keep your entire fleet CARB-compliant.
19 Pin OBDII or 9 Pin J1939
Once you're ready to install, be sure to contact us to register and activate your device,
Everything needed to install your device is included in your CTC Direct kit. Plug it in and hit the road!
No Hassle. No lines. No detours. We'll make sure you stay CARB Compliant,
Yes. CTC Direct is fully compliant with CARB’s Clean Truck Check (HD I/M) requirements. It performs automatic tests, submits results directly to CARB, and keeps your fleet compliant without the hassle.
CTC Direct works with most diesel vehicles 2013 and newer equipped with an OBD port. If you’re unsure, contact our team and we’ll verify your vehicle’s compatibility before you order.
CTC Direct is designed for easy, plug-and-drive installation. Just connect it to your vehicle’s diagnostic port with the provided splitter cable and you’re good to go—no mechanic required. You can use included zip ties to tuck it up under the dash, too.
All diesel and alternative fuel heavy-duty trucks over 14,000 lbs (GVWR) operating on California roads—even if registered out of state—must comply.