What is the legal window tint shade for my state?
Window tinting laws vary from state to state and province to province. Before applying any window tinting materials, you should thoroughly review the appropriate state regulations as well as local enforcement policies to insure compliance with all applicable standards. 

These PDF summary charts are the result of independent research, using several sources of public state documents, they do not serve as a legal document. 
Download U.S. Tint Laws
Download Canadian Tint Laws