Periodic HD I/M Testing Requirements

Clean Truck Check (HD I/M)
Clean Truck Check reporting deadline extended to January 31, 2024

Deadline Update for Clean Truck Check Reporting: The California Air Resources Board (CARB) is extending the Clean Truck Check reporting deadline to January 31, 2024, to allow vehicle owners additional time to complete their initial fleet reporting and meet the compliance fee requirement for 2023. To access the reporting database to complete your reporting requirements, please visit the Clean Truck Check program page.

DMV Registration Notice with CARB Non - Compliant Vehicle Warning -

You may have accessed this webpage due to a Notice of Incomplete Renewal from DMV as shown below. If you received this or a similar notice that says you’re out of compliance – please visit the TruckStop DMV page.

Clean Truck Check-Vehicle Inspection System (CTC-VIS) Reporting Training Webinars

The California Air Resources Board (CARB) staff invite you to participate in one of four public online reporting training webinars on the new Clean Truck Check-Vehicle Inspection System (CTC-VIS) reporting database. The November 3, November 16 and December 18 sessions will be hosted in English. The session on December 5, 2023, will be hosted in Spanish.

Clean Truck Check: Meetings & Workshops

Clean Truck Check Background

In December 2021, the California Air Resources Board approved the Heavy-Duty Inspection and Maintenance (HD I/M) Program, now known as Clean Truck Check, in an ongoing effort to meet air quality standards by ensuring heavy-duty vehicle emissions control systems operate properly throughout the life of the vehicle. The program requirements include reporting in the Clean Truck Check database (coming soon), per vehicle compliance fees, and periodic testing.

Clean Truck Check Program