Montana Radar Detectors Laws (2026)

Permitted: Radar detectors are legal in passenger vehicles — Montana has no state ban on them.

PermittedVerified Jun 18, 2026

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Official source: leg.mt.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Radar Detectors in states bordering Montana

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

IdahoPermitted
Radar detectors are legal in passenger vehicles — Idaho has no state ban on them.
Verified Jun 18, 2026 · Source: legislature.idaho.gov · Full Idaho rule →
North DakotaPermitted
Radar detectors are legal in passenger vehicles — North Dakota has no state ban on them.
Verified Jun 18, 2026 · Source: ndlegis.gov · Full North Dakota rule →
South DakotaPermitted
Radar detectors are legal in passenger vehicles — South Dakota has no state ban on them.
Verified Jun 18, 2026 · Source: sdlegislature.gov · Full South Dakota rule →
WyomingPermitted
Radar detectors are legal in passenger vehicles — Wyoming has no state ban on them.
Verified Jun 18, 2026 · Source: wyoleg.gov · Full Wyoming rule →

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