About Us: California’s
Emissions Test Specialists
Golden State Emission Testing is a CARB-credentialed mobile Clean Truck Check service, providing diesel emissions compliance testing for heavy-duty diesel vehicles operating in California. Our mobile service comes directly to your location to conduct Clean Truck Check testing for current and upcoming CARB regulations. This convenient approach saves you time, money, and the hassle of driving to a testing site. We provide on-site testing for one or multiple trucks.
Golden State Emission Testing is here to make new CARB regulation testing a smooth and stress-free transition for your vehicles. That’s why we offer mobile testing services for both individual owner-operators and truck fleets. Our team travels to your location to perform all required testing, ensuring your vehicles comply with California regulations while minimizing downtime and keeping your trucks on the road.
The Clean Truck Check regulations—also known as the Heavy-Duty Inspection and Maintenance (HD I/M) Program—apply to nearly all non-gasoline vehicles with a gross vehicle weight rating (GVWR) of 14,000 pounds or more operating within California.
For official program details, visit Clean Truck Check (HD I/M).
Experience & Expertise
Golden State Emission Testing brings hands-on experience in diesel emissions compliance testing. All inspections are performed by certified technicians using approved equipment and procedures to ensure accurate, reliable results. Our mobile testing model allows us to efficiently support fleets and owner-operators while maintaining strict compliance standards.
Commitment to Compliance
We strictly adhere to CARB Clean Truck Check standards, with a strong focus on accuracy, documentation, and proper reporting. Every test is completed with attention to detail to help prevent registration delays, enforcement holds, and compliance issues.
Work Process
Effortless Compliance in Simple Steps
Experience hassle-free emissions testing with Golden State Emissions. Our streamlined process ensures your vehicles meet CARB regulations with minimal disruption.
Register Vehicle for CARB
Register your vehicle through the CARB Clean Truck Check system.
Appointment for Clean Truck Check
Contact Golden State Emissions to schedule a mobile Clean Truck Check appointment at your location.
Receive Certification
Receive your compliance certificate required for DMV registration and renewal.