Rules to remember
- Speed limit is 'reasonable and prudent' on some roads (80 mph on interstates)
- No vehicle inspection requirement
- Wildlife crossing areas require extra caution
- First-time DUI includes mandatory education program
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Montana
Driver Guide
Montana once had no daytime speed limit at all ('reasonable and prudent'). Today, its 80 mph interstate limit remains among the nation's highest. No vehicle inspections are required.
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Before you drive
Montana has some of the most permissive speed limits in the nation. The state requires drivers under 18 to complete driver education. Insurance minimums are 25/50/20.