| Business | Phone |
| Auto Chek Center 2702 N Grand Ave, Santa Ana 92705 | (714) 771-7664 |
| Eagle Smog 2101 S Main St, Santa Ana 92707 | (714) 540-7494 |
| Aaa Smog Test Only Center 1202 E Edinger Ave, Santa Ana 92707 | (714) 550-6345 |
| Ace Mobil Smog Test Only Center 1501 E Edinger Ave, Santa Ana 92705 | (714) 953-1623 |
| C & S Automotive 829 E 1st St, Santa Ana 92701 | (714) 953-2663 |
| Santa Ana Smog Repair 123 S Mcclay St # A, Santa Ana 92701 | (714) 542-5298 |