The Ontario Building Code | Vitrified Clay Pipe and Fittings
7.2.5.4. Vitrified Clay pipe and Fittings
(1) Vitrified clay pipe and fittings shall be certified to CSA A60.1-M, "Vitrified Clay pipe".
(2) Couplings and joints for vitrified clay pipe shall be certified to CSA A60.3-M, "Vitrified Clay pipe Joints".
(3) Vitrified clay pipe and fittings shall not be used except for an underground part of a drainage system.
In Plain Language
Vitrified clay pipe and fittings must be certified to CSA A60.1-M, and their couplings and joints must meet additional specific requirements ensuring watertight, durable connections in this traditional drainage material.
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.