Straight from a PO:
If you want to know what is illegal or why your’s was found to be illegal, the answer lies in your state’s code or the facts of your installation.
If you are asking why state’s legislatures have seen fit to enact laws limiting or even prohibiting any additional window tint, the reasons are varied but most are likely due to two things.
- … Officer Safety.
- … Traffic Safety.
Both depend on vision, vision depends on the reception of light to work, both reflected light and light coming from a sorce. It isn’t just about the driver being able to see out. It’s also about officers and other drivers being able to see you when you drive for clues to whether you are pointing a gun at the officer or looking their way when you are sitting at a stop sign as they approach along the highway at 55 mph.