| Business | Phone |
| Ball Smog Test Only Center 910 Highland Ave, National City 91950 | (619) 477-1996 |
| Bob's National City Auto Rpr 1900 National City Blvd, National City 91950 | (619) 477-2234 |
| Smog Centro 404 Highland Ave, National City 91950 | (619) 474-6418 |
| Pacific Auto Repair 315 W 11th St, National City 91950 | (619) 477-9325 |