What issue might arise if the area for the inspection sticker is not properly cleaned?

If the area for the inspection sticker is not properly cleaned before application, it can lead to poor adhesion of the sticker. Dirt, grease, dust, or any residue can create a barrier between the sticker and the surface of the vehicle. This can result in the sticker not sticking securely, which may cause it to peel off or become dislodged over time, especially under varying weather conditions such as rain, heat, or extreme cold. Properly cleaning the area ensures that the adhesive on the back of the sticker makes effective contact with the surface, allowing it to adhere as intended and remain in place for the duration of its validity.