| Business | Phone |
| E Z Smog Inc 5882 Riverside Dr, Chino 91710 | (909) 364-1037 |
| Pro Care Auto Shop 4702 Riverside Dr, Chino 91710 | (909) 464-0588 |
| U S Smog Check 4097 Grand Ave, Chino 91710 | (909) 590-0202 |
| Ace Smog of Chino 4702 Riverside Dr., Chino 91710 | (909) 628-4414 |