Abstract: An enforcement shutter for an electronic meter comprises an enforcement display element having a highly visible surface and adapted to be fixed to the meter housing, and a cable for coupling the enforcement display element to the computer processor for controlling the operation of the enforcement display element. The enforcement shutter includes a holder having a window, a transparent protective plate positioned on the inner surface of the holder, a back plate adapted to be fixed to the holder for mounting the holder to the meter housing. The enforcement display element, which is positioned to face the transparent plate with a display surface visible in the holder window, may be mounted in the holder or to a surface of the inner electronic meter. The enforcement display element may be a LCD. When activated by the electronic meter processor to indicate that parking time has expired, the LCD displays a substantially uniform color and may be made to flash.