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Montana Boating Under the Influence (BUI) (2026)
Conditional: In Montana it is unlawful to operate a motorboat while under the influence; a person with an alcohol concentration of 0.08 or more is considered under the influence (Montana FWP).
ConditionalVerified Jul 7, 2026
Boating rules change at the state line — and in your state.Track them in the free LawLert iPhone app: it alerts you when you cross into a state where they differ, and when they change in your state. No account.Get the appIn Montana it is unlawful to operate a motorboat while under the influence; a person with an alcohol concentration of 0.08 or more is considered under the influence (Montana FWP).
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