Abstract: A signaling device is mated with a conventional container to develop a change in state for indicating that the container has been accessed. The change in state can be developed manually, or automatically when the cover of the container is opened, to signal that the container has been accessed, and can be automatically returned to the initial state as part of the procedures used to empty the container. The signaling device is used in combination with a system for auditing a refuse collection process so that subscribers to the service can be charged for service according to usage. This then motivates the subscribers to call for collections of their refuse only from containers that are substantially full, or to compensate the refuse collection service for additional container pick-ups.

Abstract: A signaling device is mated with a conventional container to develop a change in state for indicating that the container has been accessed. In conjunction with a refuse container having a body and a cover connected to the body of the container by a hinge, the signaling device takes the form of a flag which is coupled with the hinge of the container so that the flag can move between a lowered position in which the flag lies over the cover of the container, and a raised position in which the flag extends upwardly from the container, providing the desired change in state. In use, the flag is automatically moved from the lowered position to the raised position when the cover is opened, signaling that the container has been accessed. The flag is automatically returned from the raised position to the lowered position as part of the procedure which is used to later empty the container.