Ensure your truck stays compliant and running clean with our HD I/M (Heavy Duty Inspection & Maintenance) Services. We offer comprehensive emissions testing, utilizing the latest CARB-certified computerized testing and reporting system. Additionally, we provide smoke opacity testing for vehicles and equipment from 2013 and older, available at your convenience—on-site, on the road, or in the shop. Our certified technicians are here to help you certify your truck and equipment, making the process simple and hassle-free.

Did you know that diesel trucks and equipment operating in California must undergo emissions testing twice a year and submit results to CARB? The DMV is now checking for compliance with the Truck and Bus regulations, and any vehicles that fail to comply may face registration holds. Don’t let this affect your fleet. All American Diesel and Fleet Services of Orange will handle all the necessary reporting and keep your trucks, equipment, and fleet up-to-date with CARB compliance.

The smoke opacity test measures the concentration of particulate matter and pollutants emitted from diesel exhaust systems. It is crucial for reducing the environmental impact of diesel vehicles.