What must drivers display on their windshield?

Drivers must display a valid inspection sticker on their windshield to confirm that their vehicle has passed the mandatory state inspection. This sticker is a visual indicator that the vehicle meets the safety and emissions requirements set forth by Pennsylvania law. Displaying this sticker is important as it not only ensures compliance with vehicle regulations but also helps law enforcement and other officials to quickly ascertain that the vehicle is roadworthy and has undergone the necessary checks.

While parking permits, registration documents, and proof of insurance are essential for various legal purposes and may be required for specific situations, they are not mandated to be displayed on the windshield. The inspection sticker, however, is specifically designated to be affixed to the windshield, usually in the lower corner, making it easily visible to authorities and ensuring that vehicles on the road are safe for operation.