Where is the annunciator panel located in a building?

• A. In the lobby
• B. In a mechanical room
• C. In the roof space
• D. In an area approved by the AHJ

Answer: (D)

The placement of the annunciator panel is determined by the Authority Having Jurisdiction. This ensures the panel is in a location that is accessible to staff and responders, protected from damage, and suitable for monitoring the fire alarm system. Codes and NFPA 72 require that the annunciator be placed in an area approved by the AHJ, so the exact spot can vary based on the building and local requirements. In practice, it’s often in a fire command center, security office, or another centrally monitored, protected area, but the key point is that the AHJ approves the location. The other suggested spots aren’t guaranteed to meet all code and safety criteria, which is why the approved-by-AHJ rule is the correct guideline.