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9.7.1.3.(2)
OS3
ObjectiveOS3 Safety in Use
Attribution
Application
Application 1: 
Minimum clearance in front of designated escape windows that open into window wells in bedrooms, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except as stated in Sentence 9.7.1.2.(1), which applies to:
  • bedrooms and combination bedrooms that have direct access to the exterior through an exit door, and
  • bedrooms and combination bedrooms in sprinklered suites.
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Intent
Intent 1: 
To limit the probability that operation of a window sash will reduce the required clearance from a window well to a designated escape window, which could lead to persons being trapped in a bedroom in an emergency, which could lead to harm to persons.
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