Systems. (1) NFPA 13, Installation of Sprinkler Systems, 2019 edition. (a) NFPA 13, Chapter 16, Section 16.9.11, Floor Control Valve Assemblies, Subsection 16.9.11.5, is deleted and rewritten as follows: "16.9.11.5, System Subdivision - Floor/Zone Control Valves. Individual floor/zone control valves shall be used at the riser at each floor for connections to piping serving floor areas in excess of 5,000 square feet." (b) NFPA 13, Chapter 8, Section 16.11.2.1, Local Waterflow Alarms, is amended by adding a new subsection as follows: "16.11.2.1.1 Single Tenant Occupancies. When a fire alarm system is not required by IFC, Section 907.2, an approved audible/ visual waterflow alarm (horn/strobe) shall be provided in the interior of the building, in a normally occupied location, to alert the occupants of the fire sprinkler system activation." (c) NFPA 13, Chapter 8, Section 16.11.2.1, Local Waterflow Alarms, is amended by adding a new subsection as follows: "16.11.2.1.2 Multi-Tenant Occupancies. When a fire alarm system is not required by IFC, Section 907.2, an approved audible/ visual waterflow alarm (horn/strobe) shall be provided in the interior of each tenant space, in a normally occupied location, to alert the occupants of the fire sprinkler system activation." (d) NFPA 13, Chapter 8, Section 16.11.2.1, Local Waterflow Alarms, is amended by adding a new subsection as follows: "16.11.2.1.3 Exterior Waterflow Alarm. An approved audible/visual waterflow alarm (horn/strobe) shall be provided on the exterior of the building in a location approved by the AHJ." (2) NFPA 13D, Installation of Sprinkler Systems in One- and Two-Family Dwellings and Manufactured Homes, 2019 edition. (a) NFPA 13D, Chapter 7, Section 7.6, Alarms, is amended by adding a new subsection as follows: "7.6.1 Exterior Waterflow Alarm. When an alarm initiating device is included, an approved audible/visual waterflow alarm (horn/strobe) shall be provided on the exterior of the building in a location approved by the AHJ." (b) NFPA 13D, Chapter 7, Section 7.6, Alarms, is amended by adding a new subsection as follows: "7.6.2 Interior Alarm. When an alarm initiating device is included, an interior fire alarm notification appliance is also required to sound throughout the dwelling. An approved audible sprinkler flow alarm to alert the occupants of the dwelling in a normally occupied location when the flow switch is activated must be provided." (3) NFPA, Standard 13R, Installation of Sprinkler Systems in Residential Occupancies up to and Including Four Stories in Height, 2019 edition. (a) NFPA 13R, Chapter 6, Section 6.8, Valves, is amended by adding a new subsection as follows: "6.8.11 Floor/Zone Control Valves. Individual floor/zone control valves shall be used at the riser at each floor for connections to piping serving floor areas in excess of 5,000 square feet or arranged in a manner acceptable to the AHJ." (b) NFPA 13R, Chapter 6, Section 16, Alarms, is amended by adding a new subsection as follows: "6.16.1.1 Local Waterflow Alarms. When a fire alarm system is not required by IFC, Section 907.2, an approved notification appliance indicating waterflow shall be provided in the interior of each residential unit/tenant space, in a normally occupied location, to alert the occupants of the fire sprinkler system activation." (c) NFPA 13R, Chapter 6, Section 16, Alarms, is amended by adding a new subsection as follows: "6.16.1.2 Exterior Waterflow Alarm. An approved audible/visual waterflow alarm (horn/strobe) shall be provided on the exterior of the building in a location approved by the AHJ." (4) NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems, 2020 edition. NFPA 25, Section 5.3.4.4.1, the first line is deleted and replaced with the following: "For system antifreeze installed prior to July 1, 2023, listed antifreeze shall not be required, where all of the following conditions are met:" (5) NFPA 72, National Fire Alarm and Signaling Code, 2019 edition. NFPA 72, a new Section 18.1.1.1 is added as follows: "The fire code official may modify the requirements of this chapter in areas of educational occupancies used exclusively for special education students."
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