Massachusetts window tint laws
Middle of the national pack for front-side tint (17 of 51 jurisdictions are stricter).
The legal limits
Will your film pass in Massachusetts?
A trooper's meter reads the film and the glass. Factory glass runs about 78% VLT, so net VLT = film × glass — which is why "35% film" can fail a 35% state. Common shades over factory glass:
| Film | Meters at | Front side | Back side | Rear |
|---|---|---|---|---|
| 70% | 54.6% VLT | Pass | Pass | Pass |
| 50% | 39.0% VLT | Pass | Pass | Pass |
| 35% | 27.3% VLT | Fail | Fail | Fail |
| 20% | 15.6% VLT | Fail | Fail | Fail |
| 5% | 3.9% VLT | Fail | Fail | Fail |
Different glass or an odd shade? Run the exact numbers in the tint-law tool — it also emails you if Massachusetts's law changes.
Across the state line
Shops near a border tint cars registered in both states. Massachusetts front side: 35% VLT min — the neighbors:
Massachusetts tint law FAQs
What is the darkest legal tint in Massachusetts?
Front side windows must let through at least 35% of light, back side 35%, and the rear window 35%. Anything darker fails a meter check.
Is 20% tint legal in Massachusetts?
A 20% film over factory glass meters about 15.6% VLT. That fails Massachusetts's 35% front-side rule and it also fails the back-side limit (35% vlt min).
Does Massachusetts allow medical exemptions for darker tint?
Yes — Massachusetts allows darker film with a qualifying medical exemption. The state also requires a compliance sticker between the film and glass, so carry the exemption paperwork with the vehicle.
Is reflective or mirrored tint legal in Massachusetts?
No — Massachusetts does not allow reflective or mirrored window film.
What is the windshield tint rule in Massachusetts?
Massachusetts allows windshield tint only at the top of the glass: Top 6". Full-windshield film (outside a medical exemption) fails inspection.
Reviewed against state DOT/DPS regulations as of 2025. States amend tint law — verify with the Massachusetts authority before installing. This is reference material, not legal advice.
Run a tint shop in Massachusetts?
Wraptor quotes tint, wrap, and PPF jobs with the legal limits built in — plus scheduling, deposits, and a CRM that remembers every VIN.