A bill for an act relating to motor vehicle window tint, and making penalties applicable.

This bill changes Iowa's window tint law to require that front windshields and driver-side windows allow at least 35% of light to pass through (down from the current 70% standard). It applies to all drivers operating vehicles on Iowa highways, directly affecting vehicle owners who install darker tint. The law removes the Department of Transportation's authority to set rules on this issue and sets a $70 fine for violations. Law enforcement vehicles used for official duties remain exempt, as under current law.