Public Consultation: Proposed Changes to the 2025 National Building Codes
Hello Members,
The Canadian Board for Harmonized Construction Codes (CBHCC) has launched a public consultation on proposed changes to the 2025 National Model Codes, including several updates relevant to the window and door industry.
Key proposed changes include:
Updated standards references: AAMA 501 series (501, 501.1, 501.2, 501.4, 501.5 and 501.6), CAN/CGSB 12.1 and 12.8, CSA A440S1, NFRC 100 and 200, and CAN/ULC 104 and 106.
Tier 3 energy efficiency: Introduction of a prescriptive Tier 3 compliance pathway for Part 9 buildings, including updated window and door performance requirements based on climate zone.
Minimum energy performance: Establishing Tier 1 as the minimum national model-code energy performance level.
These changes are currently proposals and have not yet been adopted into the National Model Codes.
The public consultation closes December 21, 2026.
Review the proposed changes: 2026 Public Review - Proposed Changes to the National Model Codes
Warm regards,
Adrian Edge
Director of Codes and Regulatory Affairs
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