The Ontario Building Code | Shut-off Valves
7.6.1.4. Shut-off Valves
(1) Except for a single-family dwelling, every risershall be provided with a shut-off valve at the source of supply.
Note: On July 1, 2017, Sentence 7.6.1.4.(1) of Division B of the Regulation is amended by striking out "Except for a single-family dwelling" at the beginning and substituting "Except for a house containing not more than one dwelling unit". (See: O. Reg. 139/17, s. 55)
In Plain Language
This article sets more detailed requirements for where shut-off valves specifically must be installed, building on the general control valve requirements in the preceding article.
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.