Montana Window Tint Laws (2026)

Info: Front side windows must let at least 24% of light through.

InfoVerified Jun 18, 2026

Front side windows must let at least 24% of light through. The windshield must stay clear below the AS-1 line — the marking near the top of the windshield. (Mont. Code Ann. 61-9-405)

Official source: mca.legmt.gov →

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