The Clean Truck Check Program, created by the California Air Resources Board (CARB), is designed to improve air quality by reducing emissions from heavy-duty trucks and buses operating in California.
Also known as the Heavy-Duty Inspection and Maintenance (HD I/M) Program, it requires vehicles to maintain properly functioning emissions systems throughout their lifespan. The program helps identify high-emission vehicles early so they can be repaired and returned to compliance.
The program applies to both California-registered and out-of-state trucks that operate on California roads.
Clean Truck Check Requirements
As of 2023, all heavy-duty vehicles with a Gross Vehicle Weight Rating (GVWR) over 14,000 pounds must meet Clean Truck Check requirements. These include:
• Registering vehicles in the CARB Clean Truck Check database
• Completing required emissions testing
• Submitting compliance reports to CARB
• Paying annual program fees
Failure to comply may result in fines or registration holds.
CARB Rules for Heavy-Duty Trucks
CARB regulations extend beyond emissions testing and include:
• Phasing out older diesel engines
• Idling restrictions to reduce pollution
• Transition requirements toward zero-emission vehicles
Understanding and following these rules is essential for keeping your vehicles operating legally in California.
How Inland Mobile CARB Check LLC Helps
Inland Mobile CARB Check LLC provides mobile emissions testing and compliance support for truck owners and fleet operators throughout Southern California.
We make compliance simple by offering:
• Mobile on-site testing
• Fast scheduling
• Compliance guidance
• Registration assistance
Our goal is to keep your vehicles compliant and minimize downtime.
Frequently Asked Questions
What happens if my truck fails inspection?
If your truck fails, repairs must be completed before it can pass compliance. Retesting is required after repairs.
Are any vehicles exempt?
Some vehicles may qualify for exemptions, such as certain emergency or specialized vehicles. We can help determine eligibility.
How do I register?
Registration is completed through the CARB Clean Truck Check portal. We can assist with registration and compliance steps.
Contact Us
Have questions about Clean Truck Check compliance?
Inland Mobile CARB Check LLC
Email: info@getcarbchecked.com
Phone: (951) 579-3900
📞 951-579-3900
📧 info@getcarbchecked.com