Gas-fired packaged boiler assemblies in Canada are required to be safety certified for both residential applications and commercial or industrial facilities. Commercial and industrial packaged gas-fired boilers have been historically evaluated to CSA/CAN1-3.1, “Industrial and Commercial Gas-Fired Package Boilers,” as part of a factory-based safety certification. However, in the first quarter of 2020, notification was provided to the Standards Council of Canada by the proprietary Standards Development Organization (SDO) regarding the withdrawal of CSA/CAN1-3.1. The boiler industry was notified that certification to this document should be concluded by the spring of 2021.