What does NFPA 13 govern?

• A. Standard for installation of sprinkler systems
• B. Maximum working pressure
• C. Light hazard occupancy
• D. Bulb-type sprinklers

Answer: (A)

NFPA 13 governs the installation of sprinkler systems. It is the Standard for the Installation of Sprinkler Systems, outlining how automatic fire sprinkler systems should be designed, installed, tested, and maintained to provide effective fire protection across buildings. It covers system types (wet, dry, deluge, etc.), piping materials, supports, water supplies, hydraulic calculations, sprinkler placement and spacing, and the processes for inspection and maintenance to ensure reliable operation. The standard sets the framework for how systems are put together, rather than prescribing a single maximum working pressure or focusing on a single occupancy category. Occupancy classifications like light hazard influence design criteria within the broader installation requirements, and sprinkler devices (such as bulb-type sprinklers) are addressed through listing and compatibility with the system rather than being the sole focus of NFPA 13.