Window tinting laws regulate how dark or reflective the tint on vehicle windows can be. These laws vary by state or country, often specifying limits for different windows, such as the front windshield, side windows, and rear windows. The purpose of these regulations is to ensure driver visibility and safety while also considering privacy and UV protection. In many places, law enforcement can measure the tint's darkness using a device called a tint meter. Violating these laws can result in fines or the requirement to remove the tint. It's important for vehicle owners to check their local laws to ensure compliance and avoid penalties.