Here at CTI we are Simplifying CARB Diesel Compliance. We make it easy for truck owners, RV drivers, and fleet operators to stay compliant with California’s Clean Truck Check (HD I/M) Program. With over 15 years of emissions testing expertise and hundreds of 5-star reviews, we deliver a fast, mobile, and hassle-free compliance experience—so you can stay on the road with confidence.
Experts in Diesel Emissions Testing
We Specialize In Emissions Testing For Diesel Vehicles Over 14,000 Lbs GVWR. Our Mission Is To Simplify The Compliance Process For California Drivers — Whether You’re Running A Single Rig Or Managing A Full Fleet. From Mobile Inspections To Automated Plug-And-Play Devices, We Help You Stay On The Road And In Compliance With Confidence.
Proudly Serving So Cal
Delivering trusted, on-site testing and emissions services throughout the Inland Empire and beyond.
Quality first
Our team is dedicated to keeping your fleet compliant, efficient, and on the road.
Customer care
We're always on your side: keeping our loyal customers happy is our top priority and number one goal.
Full-Service Support Every Step of the Way.
From scheduling your mobile inspection to guiding you through CARB’s CTC-VIS portal, we make compliance simple and stress-free. Whether you need a single test or complete emissions management, we’re here to handle it all.
