Many people think that tinted windows look "cool" while other tint their windows to shade them (and the interior of their car) from the sun. But be careful how dark you tint your windows. All 50 states have laws that guide motorists as to how dark their windshields and windows can be. The laws were enacted as a safety measure for law enforcement officers. If an officer cannot see inside a window, he or she cannot see if the person inside is pulling a gun or about to attack. The degrees of tint vary from state to state. You can find a comprehensive listing of the laws at www.iwfa.com. The penalty is a fine and the amount is determined by the state law. If you move to another state and have tinted windows, make sure your windows meet the legal requirements of that state or you could face penalties if stopped by police.