What must be done when ground support equipment is no longer being used on the aircraft parking apron?

Ground support equipment (GSE) must be moved to a designated storage area when no longer in use on the aircraft parking apron. This helps to keep the apron clear and safe for aircraft operations, as well as preventing damage to the GSE from weather or other hazards. Some items of GSE, such as tow tractors, may be able to be parked temporarily in designated areas on the apron, provided they are not obstructing aircraft movement or parked in a way that could pose a safety hazard.