Star Station Happy Smog Check Happy Smog Check is certified Smog Check Station. We can smog test all DMV required smog tests Happy Smog Check 45 Rio Rancho Rd Unit 3A-2 Pomona, CA 91766 Call now: (909)729-5001 Business hours: Mon-Fri 9:00 – 6:00 SAT 9:00 – 3:00