What is the consequence of having tint below the AS1 line?

Having tint below the AS1 line is considered potentially unsafe due to the obstructed visibility it can create for the driver. The AS1 line is a reference mark located on the windshield that indicates the area where tinting is generally allowable. Tinting below this line can reduce the driver's ability to see clearly, especially in adverse weather conditions such as rain or fog, or at night. This can impact reaction times and increase the likelihood of accidents. Therefore, regulations exist to ensure that vehicle occupants maintain adequate visibility, promoting safety on the road.

Options suggesting that such tinting is acceptable or legal in all situations do not take into account the important safety considerations. The restriction only on side windows fails to address the specific hazards associated with impaired visibility in the critical area of the windshield.