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3.1.13.9.(1)
OS1OP3
ObjectiveOP3 Protection of Adjacent Buildings from Fire
Attribution
Application
Application 1: 
Combustibility of material for interior wall and ceiling finishes of an underground walkway.
Exceptions: 
except for paint.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A.
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Intent
Intent 1: 
To limit the probability that combustible wall and ceiling finishes will be used in an underground walkway, which could lead to fire growth and the spread of fire to an adjacent [connected] building, which could lead to damage to the adjacent building.
Intent 2: 
To exempt interior wall finishes in underground walkways from the application of Sentence 3.1.13.2.(1).
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