| Business | Phone |
| Dekra Emission Check Inc 1280 Johnson Ferry Rd, Marietta 30068 | (770) 565-1915 |
| Emission Check 2745 Sandy Plains Rd, Marietta 30066 | (770) 973-6543 |
| Emission Management Inc 253 Grosvenor Pl Sw, Marietta 30064 | (770) 429-8180 |
| Carland Enterprise Inc 1330 S Cobb Dr Se, Marietta 30060 | (770) 333-6333 |