| Business | Phone |
| Transportation Dept 3311 W State St, Boise 83703 | (208) 334-8000 |
| State Aeronautics 3483 Rickenbacker St, Boise 83705 | (208) 334-8775 |
| Highway Safety 3311 W State St, Boise 83703 | (208) 334-8100 |
| Human Resource Planning & Dev 450 W State St 9, Boise 83702 | (208) 334-5500 |