STAR Certified Smog Check Stations in San Marcos, CA

10 STAR certified stations in San Marcos, California, out of 12 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 12 stations in San Marcos if STAR isn't required for your vehicle.