Welcome to the PASS lane
Clean Truck Check, simplified.
We’ve made compliance as simple as it gets. Get your AIRPASS™ and get compliant for $25 a month per truck, with no setup fee and the freedom to cancel anytime. It plugs in, runs your Clean Truck Check tests automatically and submits the results to CARB, and you can see every truck in the AIRLINK app.
Need a technician instead? Book mobile testing →
New retail box ships January 2027. Orders placed now ship in our black AIRPASS™ pouch, with the same device, cable and service.
AIRPASS™ + the AIRLINK app
You stay in control
The AIRLINK app keeps every AIRPASS™ you own in one place, whether that’s one truck or a whole fleet, so you always know where each vehicle stands. Prefer help from our team? Call or text us any time.
Request a test any time
When you need a test, including when CARB sends a Notice to Submit, you can request one from your phone in a few taps.
See every result
You’ll know when a test has been submitted, and your testing history stays with the truck.
Add trucks in minutes
Scan the QR code in the box, enter the serial number on the device, and it’s on your account.
How AIRPASS™ works
Plug in, activate, and drive
Order your AIRPASS™
Pick the 9-pin J1939 or 16-pin OBD-II version, then add your VIN, plate and a photo of your registration at checkout. We program it for your truck before it ships.
Plug it in
Engine off. Connect AIRPASS™ to your 9-pin J1939 or 16-pin OBD-II port with the included Y-cable, then zip-tie it up clear of the pedals. Take a photo of the serial number first.
Activate it in AIRLINK
Scan the QR code in the box, create your AIRLINK account, then scan or type the serial number (labeled SN:) and add your VIN, plate and state.
Drive
AIRPASS™ runs your tests and submits them to CARB. Most trucks report within about 30 minutes of driving, some up to 48 hours, and you can request a test any time in the app.
Who we are
Your team for CARB compliance
We help owner-operators and fleets manage emissions testing, reporting and CARB requirements, whether you’re based in California or just drive through it. From setting up AIRPASS™ to coordinating mobile testing and working through account issues, we make the next step clear and support you along the way.
Testing and compliance since 2014
CARB-credentialed HD I/M testers, based in Long Beach, with mobile techs in the field.
Help any hour, by call or text
1-800-788-5241. Setup, test results, Notices to Submit and account questions.
One truck or a whole fleet
The same device, the same app and the same team, whatever size you run.
Watch: a quick tour of the AIRLINK Fleet app.
Your options
Which is right for you?
Most 2013 and newer trucks can test themselves with AIRPASS™. Older trucks, and anyone who’d rather have a technician, can book a mobile test.
Automatic testing
AIRPASS™
Per truck · no setup fee · cancel anytime
- Tests on its own whenever a test is due
- Unlimited tests, plus on-demand in the AIRLINK app
- Most 2013 and newer diesel trucks, 9-pin or 16-pin
We come to you
Mobile OBD test
2013 and newer trucks · fleet rates available
- A credentialed tester at your yard or job site
- We submit the result to CARB
- Good for one-off tests and mixed fleets
We come to you
Mobile smoke opacity (OVI)
2012 and older trucks · fleet rates available
- SAE J1667 opacity test and visual inspection
- We submit the result to CARB
- Los Angeles and Orange County, Ontario and Long Beach
AIRPASS™ is month to month. If you cancel, return your AIRPASS™; a $300 fee applies if equipment isn’t returned. CARB’s annual compliance fee is paid to CARB and isn’t included. Running a fleet? Call or text 1-800-788-5241 for fleet pricing.
Customers
Trusted by owner-operators and fleets
“It’s like having a certified tester on board. No downtime, no headaches.”
“I used to stress every CARB test. With AIRPASS, I just plug it in and keep moving. Saved me hours and kept me compliant.”
“This is by far the most streamlined, simple system to make sure that you are compliant. Highly recommend for your fleet program.”
Trusted by fleets nationwide
FAQ
Frequently asked questions
If you don’t see your question here, call or text 1-800-788-5241 any time and we’ll help.
Is AIRPASS™ approved for California Clean Truck Check?
Yes. AIRPASS™ is CARB-certified for Clean Truck Check under Executive Order IM-006-0001-4. It runs your tests and submits them to CARB.
How much does AIRPASS™ cost?
$25 a month per truck, with unlimited testing included and no setup fee. Cancel anytime; just return your AIRPASS™. A $300 fee applies if equipment isn’t returned. CARB’s annual compliance fee is paid separately to CARB.
Will AIRPASS™ work on my truck?
Most 2013 and newer diesel trucks with a 9-pin J1939 or 16-pin OBD-II port. Choose your port at checkout, and we program AIRPASS™ to your VIN before it ships.
My truck is based outside California. Do I still need Clean Truck Check?
If the truck operates in California, Clean Truck Check applies no matter where it’s registered. AIRPASS™ works in the U.S., Canada and Mexico.
Does AIRPASS™ guarantee my truck will pass?
No device can guarantee a pass. AIRPASS™ runs and submits the test. If a truck fails, the result shows what needs repair, and retests are unlimited while your subscription is active.
What if I don’t want to deal with my CARB account at all?
Our Zero CARB Plan handles it for you. We manage your CARB account, pay your annual CARB fee and send your certificates wherever they need to go. Call or text 1-800-788-5241 to sign up.
Where do I get my certificate?
From CARB’s Clean Truck Check portal (CTC-VIS). Zero CARB Plan customers have certificates downloaded and emailed by AIRLIMITS.
News
Clean Truck Check news and updates
Ready for the PASS lane?
All it takes is one device, one app and $25 a month per truck, so you can spend less time managing compliance and more time running your business.
AIRPASS is a registered tradename of AIRLIMITS and is authorized for use as the CARB-approved Continuously Connected Device (PT40) manufactured by Pacific Track. Pacific Track does not sell directly to consumers; all end-user sales, subscriptions, and support are managed by AIRLIMITS.