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3.1.7.5.(3)
OS1OP1
ObjectiveOS1 Fire Safety
Attribution
Application
Application 1: 
Type of construction of structural members that support an assembly required to be of noncombustible construction and have a fire-resistance rating, in buildings described in Sentence 1.3.3.2.(1) of Division A.
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Intent
Intent 1: 
To limit the probability that supporting structures will be burnt away in a fire, which could lead to insufficient resistance to fire, which could lead to the collapse of the structures and their supported assemblies, which could lead to harm to persons.
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