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3.2.4.4.(4)
OS1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Operation of 2 stage fire alarm systems [that have multiple zones], as stated in Article 3.2.4.3., and that are permitted to be zone coded in Sentence 3.2.4.4.(3).
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A in which fire alarm systems are installed.
Application 2: 
This also applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] in which fire alarm systems are installed, as stated in Sentence 9.10.18.6.(1).
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Intent
Intent 1: 
To limit the probability that a person in charge of fire safety and emergency response will be confused concerning the zone in which an alert signal originated when more than one zone has initiated an alert signal, which could lead to directing the evacuation of persons into a hazardous area, which could lead to harm to persons.
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