| Business | Phone |
| Mountain View Test Olny 2426 Mountain View Rd, El Monte 91733 | (626) 448-8060 |
| Super Smogs Center 2603 Merced Ave, El Monte 91733 | (626) 448-1750 |
| Smog Check El Monte 9716 Garvey Ave, El Monte 91733 | (626) 442-2975 |
| Gilberts Automotive 4564 Peck Rd, El Monte 91732 | (626) 454-2776 |
| Guerrero Auto Electric 2435 Durfee Ave # 3c, El Monte 91732 | (626) 442-4005 |
| Mike's Test Only 2328 Durfee Ave, El Monte 91732 | (626) 279-5146 |
| Precise Automotive 5140 Peck Rd, El Monte 91732 | (626) 444-3588 |
| Rickellys Smog Testing & Auto 12364 Ramona Blvd, El Monte 91732 | (626) 575-3536 |