CBHCC Opens Public Review of Proposed Changes to 2025 Canadian National Model Codes

The Canadian Board for Harmonized Construction Codes (CBHCC) has opened a fall 2026 public review of proposed technical changes to the 2025 editions of Canada's National Model Codes. Comments are being accepted until Dec. 21.

The review covers four codes: the National Building Code of Canada, the National Fire Code of Canada, the National Energy Code of Canada for Buildings, and the National Plumbing Code of Canada. The CBHCC states that the public review aims to give code users, the codes community, and the public a detailed look at each proposed technical change and to seek comment on whether it should be approved, altered, or withdrawn.

Proposed changes by code

• National Building Code of Canada: accessibility, building fire safety, conformity assessment, defined terms, energy efficiency for houses, environmental separation, fire alarm and detection systems, greenhouse gas emissions, heating, ventilating and air-conditioning systems, performance compliance, piping and duct insulation, radon and soil gas mitigation, structural design (Part 9), and updates to referenced documents.
• National Plumbing Code of Canada: conformity assessment, drainage systems, potable water systems, and updates to referenced documents.
• National Energy Code of Canada for Buildings: conformity assessment, defined terms, service water heating, and updates to referenced documents.
• National Fire Code of Canada: flammable and combustible liquids, hazardous processes and operations, piping and transfer systems, storage of combustible products and dangerous goods, and updates to referenced documents.

Source: Plumbing & HVAC: News.