Opacity Testing

Heavy-Duty Diesel Opacity Testing (OVI Test): 

We provide certified opacity testing for heavy-duty diesel trucks, RVs, port vehicles, and rail yard equipment from 2012 or older that do not meet CARB OBD requirements. All tests are performed on-site at your location for maximum convenience and are fully CARB-compliant, including official documentation with fast turnaround times.

Our goal is to help you stay compliant—without the hassle of travel or long wait times. Enjoy no travel fees, no hidden costs, and professional, dependable testing you can trust.