The Ontario Building Code | Provisions for Firefighting
3.9.3.4. Provisions for Firefighting
(1) The requirements in Articles 3.2.2.10. and 3.2.5.1. to 3.2.5.7. need not be provided where there are not more than 12 portable classrooms on a site and where,
(a) the distance between portable classrooms is 6 m or more,
(b) the distance between portable classrooms is less than 6 m and the requirements of Subsection 3.2.3. are applied between the classrooms, or
(c) the portable classrooms are in groups conforming with either Clause 3.9.3.2.(2)(a) or (b).
In Plain Language
Firefighting access and water supply requirements can be relaxed for portable classroom groups of 12 or fewer meeting specific distance and construction conditions, recognizing their smaller scale compared to the main school building.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.