In Vermont the law permits front‑side windows to allow at least 70 percent of visible light to pass through, while rear side and back windows may be tinted to any darkness as long as the vehicle’s windshield remains clear. If a driver’s car fails to meet the 70‑percent front‑window threshold, a police officer can issue a citation, and the vehicle must be brought into compliance within 30 days or face a fine of up to $250. These limits have been unchanged since the 2015 amendment to Vermont Statutes Annotated 302.
Current Legal Limits
- Windshield: Must be free of any tint that reduces visibility; only a tiny strip at the top (the “rain‑only” strip) may be tinted for UV protection.
- Front side windows: Minimum Visible Light Transmission (VLT) is 70 percent. A simple sticker or tint film that drops VLT below this level is illegal.
- Rear side and back windows: No specific VLT requirement, allowing owners to install darker films for privacy or heat reduction.
The standards are enforced by the Vermont Department of Motor Vehicles (DMV) and are consistent with the Federal Motor Vehicle Safety Standard 103, which governs windshield performance.
Measuring VLT and Proving Compliance
VLT is measured with a photometer that shines a standardized light through the glass and records the percentage that reaches the other side. Certified auto‑glass shops in Vermont can provide an official reading, which many drivers keep on file in case of a traffic stop. The DMV accepts these written reports as proof, but officers may also use handheld meters during a stop. Keeping a copy of the measurement report in the glove compartment is a practical way to avoid disputes.
Can I use a tinted windshield for solar heat reduction?
No. Vermont law expressly bans any tint on the windshield that lowers VLT below 100 percent, except for a narrow strip at the top designed for rain‑only visibility. Solar‑control films that cover the entire windshield are considered illegal.
Are aftermarket window‑tint kits subject to the same rules as dealer‑installed films?
Yes. Whether the tint is installed by a professional shop or applied by the vehicle owner, the same VLT thresholds apply. Improper installation that results in a VLT below the legal limit will still be ticketed.
What happens if I am stopped and the officer claims my front windows are too dark?
The officer may issue a citation on the spot. You will receive a notice to appear before a municipal court or to submit a compliance plan. The fine is typically $150–$250, and the vehicle must be retinted to meet the 70‑percent requirement within 30 days.
Do classic or antique vehicles have relaxed tint rules?
No. Vermont’s statutes do not provide exemptions for vintage cars; the 70‑percent front‑window rule applies to all passenger vehicles registered for road use, regardless of age.
How can I verify that my tint complies before a road trip?
Visit a licensed auto‑glass shop for an official VLT measurement, request a written certification, and store the document in your vehicle. Some shops also provide a small label on the window indicating the measured VLT, which can be shown to law‑enforcement if asked