Massachusetts State Window Tinting Laws

Automotive Window Tint Laws in Massachusetts:
How dark can window tint be in Massachusetts?
Windshield:	Non-reflective tint is allowed on the top 6 inches of the windshield.
Front Side Windows:	Must allow more than 35% of light in.
Back Side Windows:	Must allow more than 35% of light in.
Rear Window:	Must allow more than 35% of light in.
How reflective can window tint be in Massachusetts?
Front Side Windows:	Must not be more than 35% reflective.
Back Side Windows:	Must not be more than 35% reflective.
Other Massachusetts automotive window tinting rules & regulations:
Restricted Colors:	No colors of tint are explicitly banned.
Side Mirrors:	Dual side mirrors are required if back window is tinted.
Certificate Requirements:	Manufacturers of film do NOT need to certify the film they sell in the state.
Sticker Requirements:	State law recommends but does not require stickers to identify legal tinting.
Medical Exemption:	State allows medical exemptions for special tint. For more details about the specific terms of the exemption, consult your state law.