HOW DARK CAN WINDOW TINT BE IN IOWA?
Darkness of tint is measured by Visible Light Transmission percentage (VLT%).
In Iowa, this percentage refers to
percentage of visible light
allowed in through the combination of film and the window.
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 70% of light in.
Back Side Windows
Any darkness can be used.
Rear Window
Any darkness can be used.
HOW REFLECTIVE CAN THE TINT BE IN IOWA?
Similar to sunglass lenses, some tinting film contain metallic elements
that help in reflecting incoming light and reducing the glare and heat generated
by visible light.
Front Side Windows
Not excessive reflectiveness, law is not specific.
Back Side Windows
Not excessive reflectiveness, law is not specific.
OTHER IOWA RULES AND REGULATIONS
Restricted Colors
No colors of tint are explicitly banned.
Side Mirrors
No restrictions.
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.