The Ontario Building Code | Fire Extinguishing Systems
220.127.116.11. Fire Extinguishing Systems
(1) In addition to other requirements in this Division for the installation of automatic fire extinguishing systems, an appropriate fire extinguishing system shall be installed in every industrial occupancy floor area to provide protection if required by,
(a) the Fire Code made under the Fire Protection and Prevention Act, 1997, or
(b) the CCBFC NRCC 53303, "National Fire Code of Canada", in the absence of provisions referred to in Clause (a).