Montana · Montana Code Annotated — Title 61, Motor Vehicles

MCA Title 61 § 61-8-1024: Ignition interlock device -- assisting in starting and operating -- circumventing -- penalty

Misdemeanor

What this law says, in plain English

It is unlawful to operate a vehicle without a required ignition interlock device, to help someone restricted to such a device start their vehicle, or to circumvent the device. Violations are punishable by up to $500 fine or up to 6 months imprisonment.

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This page is legal information, not legal advice. Code text is sourced from official publications and may lag amendments — always confirm at the official source linked above. Plain-English summaries and relationship data are AI-derived and reviewed on an ongoing basis; verify with a licensed attorney before acting.