STAR Certified Smog Check Stations in Portola Valley, CA

2 STAR certified stations in Portola Valley, California, out of 2 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 2 stations in Portola Valley if STAR isn't required for your vehicle.