B-1.1, r. 2 - Construction Code

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8.88. Metal material that is to contain petroleum products and that is used during the installation, repair or alteration of underground piping, including galvanized steel piping, valves, vents and underground metallic connections, must be new and protected against corrosion in compliance with Appendix A of CAN/ULC Standard S603.1 External Corrosion Protection Systems for Steel Underground Tanks for Flammable and Combustible Liquids, published by Underwriters’ Laboratories of Canada.
Corrosion protection in compliance with that method is not required if the piping is used in a designated location for a period of less than 2 years.
O.C. 220-2007, s. 1.