| Business | Phone |
| Alex Auto Repair & Smog Check 94 S D St, Porterville 93257 | (559) 781-3040 |
| Bales Smog & Tune 154 N Porter Rd, Porterville 93257 | (559) 793-1638 |
| Mighty Brakes 490 E Date Ave, Porterville 93257 | (559) 781-8440 |
| R & H Tune & Smog 83 E Oak Ave, Porterville 93257 | (559) 784-7015 |
| Rubens Automotive 720 S Main St, Porterville 93257 | (559) 783-2143 |
| Ruiz Smog Test Only 279 S Main St, Porterville 93257 | (559) 783-2024 |
| Smog Masters 1585 W Olive Ave, Porterville 93257 | (559) 784-0544 |