In Plain Language

A portable classroom must generally be provided with means of egress conforming to the standard exit requirements in Sections 3.3 and 3.4, except where a specific fuel-fired appliance provision requires otherwise.

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.