In Plain Language

A lavatory that doesn't have an overflow must be equipped with a centre outlet waste fitting, ensuring the fixture drains properly even without a built-in overflow passage.

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.