STAR Certified Smog Check Stations in Ontario, CA

22 STAR certified stations in Ontario, California, out of 42 licensed smog check stations total. A STAR station is specially certified by the Bureau of Automotive Repair — some vehicles are required by their DMV renewal notice to test at a STAR station specifically. See our STAR certification guide for details, or view all 42 stations in Ontario if STAR isn't required for your vehicle.