Massachusetts Window Tint Laws — Complete Guide
Everything you need to know about window tint regulations in Massachusetts. Current legal limits for every window, penalties for violations, and how medical exemptions work.
Updated April 2026 · Massachusetts Tint Exemption Editorial Team
Massachusetts Tint Limits at a Glance
VLT (Visible Light Transmission) is the percentage of light that passes through the window. Lower VLT = darker tint. Massachusetts uses a uniform 35% VLT standard for sedans.
| Window | Sedan | SUV / Van / Truck |
|---|---|---|
| Front Windshield | Non-reflective tint above AS-1 line only | Non-reflective tint above AS-1 line only |
| Front Side Windows | 35% VLT | 35% VLT |
| Back Side Windows | 35% VLT | Any darkness |
| Rear Window | 35% VLT | Any darkness |
| Max Reflectivity | No metallic or mirrored tint | No metallic or mirrored tint |
Massachusetts vs. Neighboring States
Massachusetts sits in the middle of the pack among New England states. Rhode Island, New Hampshire, and Vermont are all much stricter (70% VLT). If you drive across state lines, your tint that's legal in Massachusetts could be illegal in a neighboring state:
| State | Front Side | Back Side | Annual Inspection? |
|---|---|---|---|
| Massachusetts | 35% | 35% | Yes |
| Connecticut | 35% | 35% | No |
| Rhode Island | 70% | 70% | Yes |
| New Hampshire | 70% | 35% | Yes |
| Vermont | 70% | Any | Yes |
| New York | 70% | 70% | Yes |
The Annual Inspection Consequence
Penalties for Illegal Tint in Massachusetts
A medical exemption at $225 costs the same as a single tint ticket and eliminates both enforcement risks permanently.
Where Massachusetts Enforces Tint Laws Most
Massachusetts State Police, Boston PD, and local departments actively enforce tint laws at traffic stops and roadside checkpoints.
I-93 (Boston to NH border)
Highest enforcement corridor; MSP and BPD patrol heavily through downtown Boston
I-90 / Mass Turnpike (Boston to Springfield)
MSP Troop E patrols this major east-west corridor
Route 128 / I-95 (Greater Boston loop)
Heavy suburban traffic; frequent stops by local PDs and MSP
Storrow Drive / Memorial Drive (Boston/Cambridge)
BPD and Cambridge PD are very active on tint enforcement
Route 3 (South Shore to Cape Cod)
Seasonal enforcement spikes in summer months
I-290 (Worcester)
Worcester PD actively enforces tint laws
Restricted Tint Colors & Reflectivity
Massachusetts prohibits certain tint colors and finishes: red, amber, and yellow tint are not permitted. Additionally, no metallic or mirrored tint is allowed on any window. These restrictions apply regardless of whether you have a medical exemption.
Medical Exemptions to Massachusetts Tint Laws
Under MGL c.90 §9D(b), individuals with qualifying medical conditions can obtain a physician-certified exemption for darker tint. Massachusetts has one of the highest physician-per-capita ratios in the country, with world-class medical centers including Mass General Hospital, Brigham & Women's Hospital, Dana-Farber Cancer Institute, and Beth Israel Deaconess — all treating the conditions that commonly qualify for tint exemptions.