What does NFPA 72 regulate in buildings?

• A. NFPA 72 governs design, installation, testing, and maintenance of fire alarm and signaling systems.
• B. NFPA 72 regulates sprinkler system design and hydraulics.
• C. NFPA 72 addresses electrical wiring for safety.
• D. NFPA 72 sets requirements for means of egress lighting.

Answer: (A)

NFPA 72 governs fire alarm and signaling systems. It defines how those systems should be designed, installed, tested, and maintained so they reliably detect a fire, alert occupants, and communicate with monitoring services. This includes the kinds of devices that initiate alarms (like detectors and manual pull stations), the control equipment and programming that run the system, the notification appliances (sirens and strobes), power supplies and supervision, and requirements for reliable signaling and interconnection with monitoring. It does not cover sprinkler system design and hydraulics (that's NFPA 13), electrical wiring safety (NFPA 70), or means of egress lighting (typically covered by NFPA 101 and related standards).