The Ontario Building Code | Provisions for Firefighting
188.8.131.52. Provisions for Firefighting
(1) The requirements in Articles 184.108.40.206. and 220.127.116.11. to 18.104.22.168. 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 22.214.171.124.(2)(a) or (b).