In the NL the front windshield and front side windows must have a minimum of 55% light transmission, which means a tint limit of 45%.
From the Dutch Public Prosecution Service (google translated
):
Quote:
Measuring Light transmission
Does the police see that the windshield of a car is blinded or lets too little light through? Or the front side windows? Then, the tintman is deployed.
The tintman is a meter that determines how much light passes through a window. This allows the police to determine quickly and easily whether the light transmittance of windshields is sufficient.
Windscreen and side windows
The light transmittance of the windshield and of the front side windows must be at least 55%.
The rear window may well be provided with a film or coating. The vehicle must then have a right side mirror.
measuring cells
On two sides of the window the police place a cell. These cells see each other through the glass. They measure how much light gets through the window.
It turns out that almost all car windows have already been given a coating from factory. As a result, the light transmittance is about 75%. Therefore, it is not wise to apply a foil. The light transmittance thereby decreases still more. It is rapidly below the permitted 55%.
The tintman is a certified measurement means and is specifically designed for the measurement of light transmittance.
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