Testing frequency increases for many fleets — check your CTC-VIS deadline
530-378-9111

Disclaimer

Last updated: July 2026

The information on this website is provided for general informational purposes only and does not constitute legal, regulatory, or compliance advice.

QR code — scan for A+ Plus Clean Truck Check digital business card Scan for our digital business card

Program requirements change

CARB Clean Truck Check requirements, testing frequency, and deadlines are established by the California Air Resources Board and are subject to change. Vehicle owners are responsible for verifying their own compliance status and deadlines in their CTC-VIS account.

No guarantee of results

Testing does not repair vehicles and does not guarantee a passing result. The CC40 automates testing for eligible OBD vehicles when the vehicle is ready and the device remains properly connected under an active service term; it does not repair emissions faults, pay CARB fees, renew registration, or correct inaccurate CTC-VIS information.

Enforcement

Noncompliance with the Clean Truck Check program can result in CARB enforcement action and California DMV registration holds, and may affect fleet operations and facility access. For official program information, consult the California Air Resources Board directly.

Contact

Call 530-378-9111 or email danny@aplusctc.com.

Don't let a deadline sneak up

Get CARB deadline reminders by email

Drop your email and we'll send compliance heads-ups and let you know when we're testing in your area — so you can plan testing before your deadlines. English or Spanish. No spam, unsubscribe anytime.

Prefer to talk? Call 530-378-9111

Need help with your CARB account?
Use CTC-VIS for vehicle reporting, annual fees, deadlines and compliance status. CARB support is separate from A+ Plus testing.

Open CARB portal (CTC-VIS)CARB helpline: 866-634-3735A+ Plus testing: 530-378-9111Send A+ Plus a message
Call 530-378-9111 Text