← North Dakota driving laws›Window Tint

North Dakota Window Tint Laws (2026)

Info: Front side windows must let at least 50% of light through; the windshield must let at least 70% through, with non-reflective tint allowed above the AS-1 line — the marking near the top — or across the top 5 inches.

InfoVerified Jun 18, 2026

Vehicle 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 app

Front side windows must let at least 50% of light through; the windshield must let at least 70% through, with non-reflective tint allowed above the AS-1 line — the marking near the top — or across the top 5 inches. (N.D. Cent. Code 39-21-39)

Official source: ndlegis.gov →

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

Window Tint in states bordering North Dakota

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

MinnesotaInfo
Front side windows must let at least 50% of light through, with a 3% margin allowed; no added tint is allowed on the windshield. (Minn. Stat. 169.71)
Verified Jun 18, 2026 · Source: revisor.mn.gov · Full Minnesota rule →
MontanaInfo
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)
Verified Jun 18, 2026 · Source: mca.legmt.gov · Full Montana rule →
South DakotaInfo
Front side windows must let at least 35% of light through, with a 9% tolerance allowed; windshield tint is allowed only above the AS-1 line — the marking near the top of the windshield. (S.D. Codified Laws 32-15-2.4)
Verified Jun 18, 2026 · Source: sdlegislature.gov · Full South Dakota rule →

Don't get caught off guardCross into a state where this law is different and the free iPhone app tells you what changed, even with the app closed. It also alerts you when a law you track changes where you live. No account.Get the free app

Track this law — get alerted when it changes

We watch the official sources behind North Dakota vehicle rules. If a tracked rule changes, you get one short email — never more than one a week. Free, unsubscribe anytime.