Buildings that contain certain safety and essential systems, known as specified systems, need a compliance schedule and an annual warrant of fitness. Some examples include things like lifts, automatic doors, or emergency power or emergency lighting systems. Specified systems help ensure a building is safe and healthy for people to enter, occupy or work in. They require ongoing inspection and maintenance to ensure they function as required. If they fail to operate properly, they have the potential to affect health or life safety. It is the responsibility of a building owner to ensure the specified systems continue to perform as was intended when they were installed.