





Clean Truck Check
Description
A Clean Truck Check, or Heavy-Duty Vehicle Inspection and Maintenance (HD I/M) regulation, is a California program designed to ensure that heavy-duty vehicles operating in the state have properly functioning emissions control systems. It involves periodic emissions testing, roadside monitoring, and data reporting to verify compliance.
PROCESS
To become Clean Truck Check compliant, the general requirement is to have your vehicle tested by a credential tester and submit a passing emissions compliance test.
Who needs it?
It focuses on heavy-duty vehicles (GVWR over 14,000 lbs) that operate on California public roads, regardless of their registration state.
Description
A Clean Truck Check, or Heavy-Duty Vehicle Inspection and Maintenance (HD I/M) regulation, is a California program designed to ensure that heavy-duty vehicles operating in the state have properly functioning emissions control systems. It involves periodic emissions testing, roadside monitoring, and data reporting to verify compliance.
PROCESS
To become Clean Truck Check compliant, the general requirement is to have your vehicle tested by a credential tester and submit a passing emissions compliance test.
Who needs it?
It focuses on heavy-duty vehicles (GVWR over 14,000 lbs) that operate on California public roads, regardless of their registration state.
Description
A Clean Truck Check, or Heavy-Duty Vehicle Inspection and Maintenance (HD I/M) regulation, is a California program designed to ensure that heavy-duty vehicles operating in the state have properly functioning emissions control systems. It involves periodic emissions testing, roadside monitoring, and data reporting to verify compliance.
PROCESS
To become Clean Truck Check compliant, the general requirement is to have your vehicle tested by a credential tester and submit a passing emissions compliance test.
Who needs it?
It focuses on heavy-duty vehicles (GVWR over 14,000 lbs) that operate on California public roads, regardless of their registration state.
Most vehicles registered in California and subject to Clean Truck Check requirements must file a Clean Truck Check test twice per year.