| Business | Phone |
| R G's Smog Tech 68727 Aliso Rd, Cathedral City 92234 | (760) 324-8225 |
| Liberty Smog 68725 Ramon Rd, Cathedral City 92234 | (760) 883-5886 |
| Liberty Smog Check 68725 Ramon Rd, Cathedral City 92234 | (760) 883-5886 |
| Smog Test Center-Test Only 68449 Perez Rd, Cathedral City 92234 | (760) 202-7448 |
| Value Smog 35794 Date Palm Dr, Cathedral City 92234 | (760) 321-4383 |