Piping- Ontario

Last Updated FEB 2026 MCT

Important: Ontario has strict limitations on which quality control programs are acceptable for piping. SB-02

These Ontario piping flowcharts are copied directly from TSSA document SB00-7:

For a detailed explanation of TSSA small fitting definition and exemption from CRN registration, please see here.

Flowchart of Piping process in Ontario Part 1

These flowcharts do not include the “TSSA requirements for medical gas piping. These charts have been modified with Code Adoption Document and refrigeration system comments by PVEng.