Our automotive technicians have over 10 years of experience in the automotive industry. You can trust that they will do their best to help you pass your smog test. SG Smog Check Center in Vallejo, CA is a STAR certified smog test only station. You can always expect efficient, friendly, and reliable service. No appointments are necessary, so feel free to drop by our smog station during business hours. We are conveniently located directly across the street from Vallejo DMV. Come to SG Smog Check Center for your next DMV smog certification! We look forward to working with you!