2025 NFPA 20 Standard for the Installation of Stationary Pumps for Fire Protection

NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection 2025 edition establishes mandatory requirements for the selection, design, installation, and acceptance testing of stationary fire pumps used to provide water supply for fire protection systems. Coverage spans centrifugal pumps, vertical turbine pumps, positive displacement pumps, drivers, controllers, automatic transfer switches, power supplies, suction and discharge piping, and storage tank configurations. The 2025 edition introduces expanded automatic and remote testing requirements for both electric and diesel-driven fire pumps, along with clarifications across controller arrangements, relief valve distinctions, and overcurrent protection.

Who Uses NFPA 20

Required by fire protection engineers, mechanical engineers, sprinkler system designers, fire pump contractors, AHJ officials, and inspectors responsible for the design, installation, and acceptance testing of stationary fire pump systems in commercial, industrial, and high-rise applications.

What's New in the 2025 Edition

The 2025 edition delivers expanded automatic testing requirements and targeted clarifications across pump system components, including:

• Standardization of the term jockey pump used consistently throughout the standard.
• Clarifications on arrangements for fire pump controllers and automatic transfer switches.
• Expanded requirements for automatic testing and automatic remote testing for electric-driven fire pumps.
• New requirements for automatic testing and remote automatic testing for diesel-driven fire pumps.
• New requirement for an alternate source of power for electrically powered diesel pump room components.
• Clarifications on the distinctions between circulation relief valves and main relief valves, sprinkler protection for fire pumps, isolation for redundant variable speed pumps, and overcurrent protection for electric-driven fire pumps.

Stay compliant with the stationary fire pump installation requirements in effect for your jurisdiction.

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