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3.8.3.3.(4)
ApplicationIntent
OA2OS3
ObjectiveOS3 Safety in Use
Attribution
[F10-OS3.7]
Application
Application 1: 
Thresholds for doorways referred to in Sentences 3.8.3.3.(1) and (2), i.e. doorways:
  • to at least one bathroom within a suite of residential occupancy, or
  • that are located in a barrier-free path of travel, as stated in Sentences 3.8.1.2.(1) and (2), 3.8.1.4.(1), 3.8.2.1.(1) and (2), and 3.8.2.2.(1), and Article 3.8.2.3.
Application 2: 
This also applies to:
  • barrier-free [exterior] pedestrian entrances required by Sentence 3.8.1.2.(1) or (2), as stated in Sentence 3.8.1.2.(3),
  • one doorway per entrance in a barrier-free path of travel, as stated in Sentence 3.8.1.2.(4), and
  • universal toilet rooms provided primarily for the use of persons of both sexes with physical disabilities, in lieu of facilities for persons with physical disabilities in washrooms used by the general public, in existing buildings where alterations are being made, as stated in Sentence 3.8.2.3.(4).
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A.
Exceptions: 
except as stated in Sentence 3.8.1.1.(1), which applies to:
  • houses, including semi-detached houses, duplexes, triplexes, town houses, row houses and boarding houses,
  • buildings of Group F, Division 1 major occupancy, and
  • buildings that are not intended to be occupied on a daily or full-time basis, including automatic telephone exchanges, pumphouses and substations.
Application 3: 
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], as stated in Sentence 9.5.2.1.(1).
Exceptions: 
except as stated in Article 9.5.2.3., which applies to apartment buildings.
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Intent
Intent 1: 
To limit the probability that a person using a manual wheelchair or other manual mobility assistance device will be impeded in egressing during an emergency, which could lead to delays in evacuating or moving to a safe place, which could lead to harm to persons.
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