In Plain Language

Direct-acting water pressure reducing valves for domestic water supply systems must conform to the referenced CAN/CSA standard specific to this equipment, ensuring reliable pressure regulation.

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.