If you drive or manage a heavy-duty truck in California, CARB’s Clean Truck Check is now part of your operating reality. This mandatory program ensures diesel vehicles meet strict emissions standards — and non-compliance can quickly lead to hefty fines or DMV...

Stay Compliant with the 2025 California Truck Emissions Law California Truck Emissions Law: The CARB Clean Truck Check is now officially in effect. If you operate a diesel truck weighing over 14,000 pounds in California, you are required to comply. With new testing...

If you operate heavy-duty diesel trucks in California, staying ahead of emissions regulations is more critical than ever. The Clean Truck Check inspection—also known as CARB’s Heavy-Duty Inspection and Maintenance (HD I/M) program—is now a mandatory part of...