Legality G7

Regulations for automotive use

Automobile window tinting, by its nature, reduces the visible light transmittance through a car's windows. This can be problematic at night, when motorists must be able to see through the windows of other vehicles in order to spot hazards which would otherwise be obstructed. Police officers must also be able to identify the passengers in a vehicle.

In many jurisdictions, there are government rules and regulations in place to ensure darkness levels of films do not present a danger to motorists.

In the UK, the Department of Transportation specifies a minimum of 70% visible light transmission (VLT) for window tinting on the windshield and the windows to the immediate left and right of the driver. The DoT does not specify any VLT requirements for any other windows. The DoT regulates commercial vehicles, not private vehicles. Private vehicles may not have tint on the windows to the immediate left and right of the driver.

The rear windows can be any shade, or colour providing this does not distract other drivers.