legal limit ?

How dark can my windows be, Legal?

 

LAW

How dark can window tint be in Missouri?
Windshield: Non-reflective tint is allowed along the top of the windshield above the manufacturer’s AS-1 line.
Front Side Windows: Must allow more than 35% of light in.
Back Side Windows: Any darkness can be used.
Rear Window: Any darkness can be used.
 
How reflective can window tint be in Missouri?
Front Side Windows: Must not be more than 35% reflective.
Back Side Windows: Must not be more than 35% reflective.
 
Other Missouri 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: No sticker to identify legal tinting is required.
Medical Exemption: State allows medical exemptions for special tint. For more details about the specific terms of the exemption, consult your state law.