| Business | Phone |
| Auto Smog Master 1620 N Long Beach Blvd, Compton 90221 | (310) 604-1055 |
| Busy Smog Test Only Center 1381 E Rosecrans Ave, Compton 90221 | (310) 631-8280 |
| Easy Smog 220 S Long Beach Blvd, Compton 90221 | (310) 639-6654 |
| Express Smog Station 1540 S Santa Fe Ave, Compton 90221 | (310) 886-3102 |
| J & Y Mobile Svc 811 S Alameda St, Compton 90220 | (310) 638-5919 |