One Stop Test Only is STAR certified Smog Check Station in Rialto, CA 92376. We can smog test all DMV required smog tests including smog test only, smog check certification, out of state smog check, vehicle registration smog test, diesel smog check, regular smog check, registration renewal smog check and change of ownership smog test. $41.75 with Smog Check Coupon Pass or Don’t Pay! Certified by the California Bureau of Automotive Repair Can certify gross polluters We Smog Test All Vehicles & RVs Out-of-State Smog Check STAR Smog Test Regular Smog Fast Smog, we have three bays Test Only Smog Station No Appointment Necessary