The Heating, Refrigeration and Air Conditioning Institute of Canada (HRAI) is a non-profit national trade association of manufacturers, wholesalers and contractors in the Canadian heating, ventilation, air conditioning and refrigeration industries.

In this document, the HRAI has provided a comprehensive comparison between the previous Ontario Building Code and the updated 2024 Code. It serves as a quick reference for professionals to identify and understand the specific changes. This tool is invaluable for those seeking to stay ahead of regulatory changes and ensure that their designs and projects remain compliant with Ontario’s updated building standards.