What characteristic must the glass of vehicle windows have?

The glass of vehicle windows must have the characteristic of being completely see-through to ensure clear visibility for both the driver and passengers. This transparency is crucial for safe driving, as it allows drivers to see the road, other vehicles, pedestrians, and obstacles without obstruction. Additionally, it contributes to the overall safety of the vehicle by enabling accurate assessments of the surrounding environment.

Being completely transparent supports road safety regulations that aim to minimize accidents caused by visibility issues. While options like tinting or frosting might seem appealing for aesthetic or privacy reasons, they can actually hinder visibility. In certain jurisdictions, the law may set limits on how tinted or frosted windows can be, emphasizing the need for clear sight lines for safe driving.