2022 NFPA 13 Standard for the Installation of Sprinkler Systems

NFPA 13, Standard for the Installation of Sprinkler Systems 2022 edition establishes mandatory requirements for the design, installation, and testing of automatic sprinkler systems across occupancy types — from light hazard residential and commercial applications through ordinary and extra hazard industrial and storage occupancies. Coverage spans system types, component specifications, water supply requirements, hydraulic design, pipe sizing, sprinkler selection and placement, obstruction criteria, storage protection, and acceptance testing. The 2022 edition includes significant updates across dry pipe systems, residential sprinklers, storage protection, freeze protection, and ESFR sprinkler criteria.

Who Uses NFPA 13

Required by fire protection engineers, sprinkler system designers and contractors, AHJ officials, building inspectors, and facility managers responsible for the design, installation, and acceptance of automatic sprinkler systems in new and existing buildings.

What's New in the 2022 Edition

The 2022 edition delivers updates across system supervision, sprinkler selection, storage protection, and freeze protection, including:

• New supplementary requirements for nitrogen generators.
• New and revised definitions throughout the standard.
• Chapter 4 revisions clarifying the delineation between miscellaneous and low-piled storage requirements.
• New dry pipe system supervision requirements added to Chapter 8.
• Chapter 9 additions addressing intermediate temperature residential and quick-response sprinkler requirements, a new section on small temporarily occupied spaces where pods are installed, and new obstruction criteria for suspended and floor-mounted obstructions in ordinary hazard occupancies.
• Chapter 14 revisions to ESFR sprinkler location criteria and updated obstruction requirements aligned with current Fire Protection Research Foundation findings.
• Chapter 16 revisions to the freeze protection determination process and new criteria for protecting piping subject to mechanical damage.
• New multiple-row rack depth criteria added to Chapter 20.
• Chapter 25 rewritten and reorganized for clarity, now covering the single point density change methodology.
• New Chapter 26 consolidating special design criteria for storage applications.

Stay compliant with the sprinkler system installation standard required in your jurisdiction.

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