Pass California’s CLEAN TRUCK CHECK From Anywhere—No Shops, No Hassles
Our CARB-approved remote testing lets you pass your Clean Truck Check tests from the road. No appointments. No detours. Works 24/7 in the U.S. and Canada
Click-to-Call
Request a Call Back
Finding a Clean Truck Check Test is a Hassle
Testing location is 100 miles off-route
Long waits and closed bays
Unreliable mobile techs
No availability when you need it
Time lost = loads lost
How Our Device Works
Plug it in to your diagnostic port (OBD)
Device auto-submits your tests to California
Download your compliance certificate
Device works with 2013 and newer engines and J1939 (round 9-pin) or J1979 (rectangular 16-pin) OBD protocols
Testimonials
"This device allows me to spend more time earning revenue and less time in the shop, waiting for someone to perform the emission testing. It is convenient and cost effective... Their customer service, like their product, is outstanding." —Greg Huggins, ExpeditorsOnline.com
Only $89/test (plus one-time device purchase of $219)
Free retests after failed or "not ready" test results
Free shipping (USPS Priority Mail)
Free OBD cable (straight cable or "Y" splitter cable)
One year warranty on device
100% money-back guarantee (cancel before testing, return device, we refund every penny)
Fleet discounts available for 10+ trucks—ask when you call
Requently Asked Questions
Do I have to leave the device plugged in all the time?
This is the most common question we get! We recommend leaving it plugged in, but sometimes that's not practical, like when you take your truck to the shop for repairs they'll remove it to run diagnostics. Just remember to plug it back in before your next test deadline.
What happens if I fail a test?
If you fail a test you'll need to make repairs then contact us when you're ready to retest.
Keep in mind you'll need to acheive "OBD Readiness" before you can pass a test after repairs. That means you need to run the truck 200 miles, OR 400 minutes, OR 5 warm-up cycles, OR no more than 2 incomplete monitors (requirements updated June 6, 2025).
Will it work with my truck?
Works with all makes and models as long as the truck has a 2013 or newer engine.
If you have a 2012 or older engine you need an OVI (Opacity Visual Inspection), also known as a smoke test.
What if my area has bad cellular service?
The device needs a strong cell signal to submit tests to California. If the device is unable to submit a test it will automatically continue attempting to submit once a day until it's successful (this happens in the background automatically). Most OTR drivers hit a good signal as they travel around, so a weak cellular signal is more of a frustration than a problem.
How to Order
Call us toll free at (323) 929-7580, or fill out the order form below and we'll contact you ASAP.
Your Info
Shipping Address
Truck Info
_____________________________________________
More than two trucks?
If you are ordering devices for more than 2 trucks, upload a spreadsheet with VIN, License Plate, and State of Registration for each.
Copyright © 2024-2025 Smart CTC LLC. All Rights Reserved.