The Ontario Building Code | Separation of Suites
188.8.131.52. Separation of Suites
(1) Except as required in Article 184.108.40.206. and as permitted by Sentence (2), each suite in other than business and personal services occupancies shall be separated from adjoining suites by a fire separationhaving a fire-resistance rating of not less than 45 min.
(2) Insprinklered buildings, suitesof business and personal services occupancy and mercantile occupancythat are served by public corridors conforming with Sentence 220.127.116.11.(4) are not required to be separated from each other by fire separations.