| Business | Phone |
| All Smog Test Only 2601 Oceanside Blvd, Oceanside 92054 | (760) 721-2700 |
| Ace Smog 242 S Coast Hwy, Oceanside 92054 | (760) 721-9494 |
| Smog & Go 4093 Oceanside Blvd # C, Oceanside 92056 | (760) 806-1415 |
| Smog This 1950 Oceanside Blvd, Oceanside 92054 | (760) 721-8350 |
| Oceanside Auto Svc 2 3582 Mission Ave, Oceanside 92054 | (760) 439-2121 |
| Oceanside Test Only Center 1106 S Coast Hwy, Oceanside 92054 | (760) 967-6666 |