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

Operator: 406-444-6200
TTY: 800-335-7592

If you need a commercial motor carrier permit:

If you are calling about hazards or fraud:
Reporting Highway Hazards
Reporting Fuel Tax Evasion: Toll-free 1-888-FUEL-LAW

By Mail

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


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