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An approved automatic fire detection system shall be installed in all Group R-2 occupancies used as dormitories, fraternities, sororities and similar student housing in accordance with this section.
907.2.9.1.1 Common and Utility Spaces
Automatic fire detection shall be provided in common and utility spaces outside of dwelling and sleeping units including but not limited to recreation rooms, lounges, dining rooms, laundry rooms, mechanical equipment rooms and storage rooms.
907.2.9.1.2 Exits and Corridors
Automatic fire detection shall be required in corridors and exits.
907.2.9.1.3 Dwelling Units and Sleeping Units
Automatic fire detection shall be installed in dwelling units and sleeping units. The automatic fire detectors shall be installed to send a supervisory signal upon activation of one fire detector. For sleeping units or dwelling units that are equipped with more than one fire detector, a fire alarm signal shall be sent upon activation of two or more fire detectors within a sleeping unit or dwelling unit.
907.2.9.1.3.1 Notification
Notification devices shall be provided in dwelling units and sleeping units meeting the audible requirements of this code and NFPA 72. The notification appliances in dwelling units and sleeping units shall activate when an initiation device activates within the dwelling unit or sleeping unit or when the building fire alarm system is activated.
Exception: In high-rise buildings, the building fire alarm shall activate in accordance with Section 907.2.12.2.

Related Code Sections

704.2.1 Fire Safety Requirements, Where Required
R-2 occupancies used as dormitories, fraternities, sororities and similar student housing and meeting the requirements of Section 907.2.9.3 of 2015 ...