Functional Statement:


To facilitate the timely movement of persons to a safe place in an emergency.


To minimize the risk of malfunction, interference, damage, tampering, lack of use or misuse.





Locking of exit and egress doors for the egress of persons other than the public during times when the public is neither present nor being admitted to the area that the exit and egress facilities serve, where:
  • the doors do not lead into exit stairs,
  • the doors do not lead from exit stairs to the exterior of the building,
  • the doors do not serve any other occupancy,
  • the area served contains at least one telephone:
    • that is accessible and in operation at all times,
    • that is not coin or card operated, and
    • marked to indicate that it is for emergency use,
  • the area served is illuminated by normal power or by emergency power when the doors are locked,
  • there are provisions that enable an announcement to be made throughout the area served before the locks are fastened, and
  • the locks are designed for use during times when the building is not occupied.
This applies to exit and egress doors referred to in Sentence
This applies, in buildings described in Sentence of Division A, to:
This also applies to:


To supersede the requirements of Sentence that doors be readily openable and permit locked doors if certain measures are taken.
This is to limit the probability that persons will be trapped in a floor area in an emergency situation, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.