| Business | Phone |
| Motor Carrier Enforcement 4647 N Highway 97, Klamath Falls 97601 | (541) 883-5701 |
| Motor Vehicle Dept 1909 Austin St, Klamath Falls 97603 | (541) 883-5720 |
| Transportation Dept 4647 N Highway 97, Klamath Falls 97601 | (541) 883-5696 |
| Transportation Maintenance 2557 Altamont Dr, Klamath Falls 97603 | (541) 883-5532 |