In Plain Language

Tubular metal or plastic traps used in accessible locations must conform to the referenced ASME/CSA standard for plumbing waste fittings, a lighter-duty trap standard appropriate for easily-accessed fixture connections.

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.