The legality of aftermarket car window movie, generally known as window tint, is primarily ruled by state legal guidelines inside the US. These rules sometimes specify parameters such because the Seen Mild Transmittance (VLT) proportion, which dictates how a lot gentle should cross via the tinted window, and restrictions on reflectivity. There isn’t a single federal regulation mandating uniform window tinting requirements throughout the nation.
Traditionally, states have enacted legal guidelines independently to handle security considerations associated to visibility for drivers and regulation enforcement. Various ranges of enforcement and particular necessities result in a patchwork of rules throughout totally different jurisdictions. Issues influencing these legal guidelines usually contain balancing particular person privateness with public security. The implementation of window tint rules predates the Trump administration.