Which NFPA standard would govern the installation of private fire service mains and their appurtenances?

• A. NFPA 14
• B. NFPA 16
• C. NFPA 22
• D. NFPA 24

Answer: (D)

The main idea is knowing which NFPA standard covers the water supply side that feeds a building’s fire protection system. NFPA 24 is the Standard for the Installation of Private Fire Service Mains and Their Appurtenances, and it specifically governs how the private main from the public water supply to the building is installed, including the piping, valves, backflow prevention, appurtenances, testing, and coordination with the building’s protection system. It also covers how these mains are protected and maintained, and how they interface with fire department connections.

Other NFPA standards address different parts of fire protection, such as standpipes and hose systems and water storage, but they are not about the private service mains themselves. Therefore, NFPA 24 is the appropriate standard for private fire service mains and their appurtenances.