Before revision: In others, upon passing the inspection, the vehicle is usually issued an identifiable mark of compliance, such as a sticker or decal , displayed on a visible part of the vehicle, like the windshield or registration plate, and police can enforce the inspection law by seeing whether the vehicle displays an up-to-date decal.
After revision: In others, once a vehicle passes inspection, an inspection decal is attached to the windshield or registration plate, and police can enforce the inspection law by seeing whether the vehicle displays an up-to-date decal.