Montana Department of Transportation

Malcolm “Mack” Long, Director


View the Governor’s Coronavirus Task Force site for more information.



In Person

Planning to visit Helena Headquarters? Please bring your photo id to the reception desk. We're located at 2701 Prospect Avenue.

Office hours: 8am-5pm, Monday-Friday, except state holidays.

By Phone

If you need a commercial motor carrier permit:

If you are calling about hazards or fraud:

By Mail

Montana Department of Transportation
PO Box 201001
Helena MT 59620-1001