PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code
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3.2.6.1.Application
(1) Except as provided in Sentence (2), this Subsection applies to a building
(a) of Group A, D, E or F major occupancy classification that is more than
(i) 36 m high, measured between grade and the floor level of the top storey, or
(ii) 18 m high, measured between grade and the floor level of the top storey, and in which the cumulative or total
occupant load on or above any storey above grade, other than the first storey, divided by 1.8 times the width
in metres of all exit stairs at that storey, exceeds 300,
(b) containing a Group B major occupancy in which the floor level of the highest storey of that major occupancy is
more than 18 m above grade,
(c) containing a floor area or part of a floor area located above the third storey designed or intended as a Group B,
Division 2 or 3 occupancy,
(d) containing a Group C major occupancy in which the floor level of the highest storey of that major occupancy is
more than 18 m above grade, or
(e) containing a retirement home, where the floor level of the highest storey of the retirement home is more than 18 m
above grade.
r1 (2) Except as required by Clause 3.2.6.1.(1)(c), this Subsection applies to a building or part thereof constructed in
conformance with Article 3.2.2.57. or 3.2.2.93. in which the floor level of the highest storey is more than 18 m above
grade.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.