Which statement best defines an annunciation zone in a multi-floor building?

• A. Each floor of a building is considered a zone except when the floor area exceeds 20,000 sq ft or 300 ft
• B. The entire building is a single zone
• C. Each room is a zone
• D. Each hallway is a zone

Answer: (C)

An annunciation zone is the defined area that the fire alarm panel uses to indicate where an event occurred. In a multi-floor building, making each room its own zone gives the panel precise location information, so responders know exactly which space is involved. If zones were defined by an entire floor or the whole building, you’d lose the ability to pinpoint the exact room, which could slow or misdirect response. A hallway-only zone would also miss many rooms and lead to unclear prioritization. By assigning each room as its own annunciation zone, the system provides clear, actionable location detail for any alarm or fault.