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BC § 420.6
Fire alarm systems and smoke alarms shall be provided in Group I-1, R-1, and R-2 occupancies in accordance with Sections 907.2.6, 907.2.8 and 907.2.9, respectively. Single or multiple station smoke alarms shall be provided in Groups I-1, R-2, and R-3 in accordance with Section 907.2.11.
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