| Business | Phone |
| 5 Points Smog & Tune 1016 O St, Modesto 95354 | (209) 572-1182 |
| A A Official Smog Test Station 1616 Oakdale Rd # 1, Modesto 95355 | (209) 551-0125 |
| A K Amigos Auto Smog 1400 N 9th St # 48, Modesto 95350 | (209) 521-3234 |
| A K Amigos Smog 109 Amador Ave, Modesto 95358 | (209) 531-2500 |
| Ace Auto Repair & Smog 143 1/2 E Whitmore Ave, Modesto 95358 | (209) 538-4884 |
| All Smogs Unlimited 1011 5th St # A, Modesto 95351 | (209) 529-9900 |
| April Smog 1455 Herndon Rd, Modesto 95351 | (209) 238-3877 |
| Auto Pros 2509 Coffee Rd, Modesto 95355 | (209) 549-9530 |
| Bull's Auto Svc & Smog 1201 Crows Landing Rd, Modesto 95351 | (209) 575-1082 |
| Cisneros Auto Svc & Smog 2200 Crows Landing Rd, Modesto 95358 | (209) 541-0109 |
| Djs Smog & Auto Repair 1545 Morgan Rd, Modesto 95358 | (209) 541-0562 |
| Go Go Smog & Auto Repair 4836 Stratos Way # J, Modesto 95356 | (209) 549-2701 |
| Mc Henry Smog Center 3536 Mchenry Ave # B, Modesto 95356 | (209) 544-2944 |
| Modesto Auto Smog & Repair 1001 5th St, Modesto 95351 | (209) 549-7676 |
| Smog Shop 125 Burney St, Modesto 95354 | (209) 523-0452 |
| Smog Unlimited 2133 Wiley Dr, Modesto 95355 | (209) 522-6900 |
| Smog-Tech 1001 E St, Modesto 95354 | (209) 521-4380 |
| Smogmasters 402 Downey Ave, Modesto 95354 | (209) 529-8149 |
| Smogs Unlimted 325 Motor City Ct, Modesto 95356 | (209) 529-0927 |
| Speedway Smog Center 920 Oakdale Rd, Modesto 95355 | (209) 529-5925 |