How are safety inspection stickers displayed on vehicles in Pennsylvania?

In Pennsylvania, safety inspection stickers are required to be displayed prominently on the vehicle, specifically on the front windshield. This placement ensures that law enforcement and inspection authorities can easily see and verify that the vehicle has passed its safety inspection. The sticker must be placed on the driver's side of the windshield, either in the lower corner or properly affixed in a way that it does not obstruct the driver's view. This visibility is crucial for maintaining safety compliance on the road and for helping to uphold state inspection regulations.