What does the "DOT" number on automotive glass signify?

The "DOT" number on automotive glass signifies that the glass meets federal safety standards. This number is issued by the Department of Transportation and is a part of a larger system designed to ensure the safety and quality of the materials used in vehicles. The presence of a DOT number indicates that the glass has been tested and complies with the applicable regulations, which are intended to enhance passenger safety and minimize the risk of injury in the event of an accident.

This regulatory oversight is crucial because automotive glass serves several important functions, such as providing structural integrity to the vehicle, protecting occupants from external elements, and maintaining visibility. Consequently, the DOT number serves as a mark of assurance for consumers and manufacturers alike, confirming that the product has undergone necessary scrutiny and adheres to standards that prioritize safety on the road.