Proposed Changes by Subject—National Building Code 2025

Div.B 3.3.1.19. Tactile Attention Indicators

• 2192 - Updating References to CSA B651 to the 2023 Edition and Simplifying the Framework in NBC Subsection 3.8.3. on the Design Requirements for Accessibility in Buildings Intended for Public Use ^{Footnote 1}

Div.B 3.8.2.3. Areas Requiring a Barrier-Free Path of Travel

• 1666 - Clarification of Requirements for Certain Clear Spaces Where Required for Barrier-free Facilities

Div.B 3.8.2.10. Signs and Indicators

• 2192 - Updating References to CSA B651 to the 2023 Edition and Simplifying the Framework in NBC Subsection 3.8.3. on the Design Requirements for Accessibility in Buildings Intended for Public Use ^{Footnote 1}

Div.B 3.8.3.1. Design Standards

• 2192 - Updating References to CSA B651 to the 2023 Edition and Simplifying the Framework in NBC Subsection 3.8.3. on the Design Requirements for Accessibility in Buildings Intended for Public Use ^{Footnote 1}

Div.B 3.8.3.3. Exterior Walks

• 2192 - Updating References to CSA B651 to the 2023 Edition and Simplifying the Framework in NBC Subsection 3.8.3. on the Design Requirements for Accessibility in Buildings Intended for Public Use ^{Footnote 1}

Div.B 3.8.3.9. Accessible Signs

• 2192 - Updating References to CSA B651 to the 2023 Edition and Simplifying the Framework in NBC Subsection 3.8.3. on the Design Requirements for Accessibility in Buildings Intended for Public Use ^{Footnote 1}

Div.B 3.6.4.3. Plenum Requirements

• 2173 - Requirements for Certain Discrete Products Installed in Plenums

Div.A 1.2.1.1. Compliance with this Code

• 2318 - Acceptance of CCMC Code Conformity Assessments

Div.C 2.2.2.1. General Information Required

• 2318 - Acceptance of CCMC Code Conformity Assessments

Div.A 1.4.1.2. Defined Terms

• 2265 - Defined Terms related to Operational Greenhouse Gas (GHG) Emissions

Div.B 9.36.15.3. Definitions

• 2265 - Defined Terms related to Operational Greenhouse Gas (GHG) Emissions

Div.B 9.36.1.3. Compliance

• 2181 - Minimum Energy Performance Compliance Level

Div.B 9.36.6.15. Modeling HVAC System of Reference House

• 2182 - Update to Energy Modeling Rules for Heat Pumps

Div.B 9.36.6.16. Modeling Service Water Heating System of Reference House

• 2182 - Update to Energy Modeling Rules for Heat Pumps

Div.B 9.36.7.2. Compliance

• 2182 - Update to Energy Modeling Rules for Heat Pumps

Div.B 9.36.7.3. Energy Performance Improvement Compliance Calculations

• 2182 - Update to Energy Modeling Rules for Heat Pumps

Div.B 9.36.12. Reserved

• 2044 - Energy Performance Tier 3 of the Prescriptive Path ^{Footnote 2}

Div.B 5.9.1.1. Compliance with Applicable Standards

• 2225 - Introduction of References to CAN/ULC 743.1:2020 and CAN/ULC 743.2:2021
• 2226 - Fibre-reinforced Gypsum Panels

Div.B 9.25.2.2. Insulation Materials

• 2225 - Introduction of References to CAN/ULC 743.1:2020 and CAN/ULC 743.2:2021

Div.B 9.25.2.5. Installation of Spray-Applied Polyurethane

• 2225 - Introduction of References to CAN/ULC 743.1:2020 and CAN/ULC 743.2:2021

Div.B 9.29.5.2. Materials

• 2226 - Fibre-reinforced Gypsum Panels

Div.B 9.36.2.4. Calculation of Effective Thermal Resistance of Assemblies

• 2225 - Introduction of References to CAN/ULC 743.1:2020 and CAN/ULC 743.2:2021

Div.B 6.3.1.3. Ventilation of Storage Garages

• 2256 - Acceptable Monitoring Devices for the Ventilation of Storage Garages

Div.B 6.9.3. Carbon Monoxide Alarms

• 2257 - Carbon Monoxide Detectors Installed in Lieu of Carbon Monoxide Alarms

Div.B 9.32.3.9. Carbon Monoxide Alarms

• 2257 - Carbon Monoxide Detectors Installed in Lieu of Carbon Monoxide Alarms

Div.B 9.36.1.1. Scope

• 2205 - New Section 9.37.-2030 on Operational GHG Emissions

Div.B 9.36.1.3. Compliance

• 2205 - New Section 9.37.-2030 on Operational GHG Emissions

Div.B 9.36.1.4. Application

• 2205 - New Section 9.37.-2030 on Operational GHG Emissions

Div.B 9.36.15. Tiered Operational GHG Emissions Compliance: Performance Path

• 2205 - New Section 9.37.-2030 on Operational GHG Emissions

Div.B 9.36.16. Tiered Operational GHG Emissions Compliance: Prescriptive Path

• 2205 - New Section 9.37.-2030 on Operational GHG Emissions

Div.B 9.37. Objectives and Functional Statements

• 2205 - New Section 9.37.-2030 on Operational GHG Emissions

Div.B 9.32.3.10. Fans

• 2240 - Replacement of a Withdrawn Standard with New Standards for Fans

Div.B 9.36.2.4. Calculation of Effective Thermal Resistance of Assemblies

• 2057 - Requirements for Energy Modeling Software

Div.B 9.36.6. Energy Performance Compliance

• 2057 - Requirements for Energy Modeling Software

Div.B 9.36.7.3. Energy Performance Improvement Compliance Calculations

• 2057 - Requirements for Energy Modeling Software

Div.B 9.32.3.11. Ducts

• 2267 - Minimum Thermal Resistance Value for Duct Insulation

Div.B 9.13.4. Soil Gas Control

• 2160 - Active Side-Wall Radon Stack

Div.B 1.3.1.2. Applicable Editions

• 2221 - Updates to Referenced Documents (Interim change) ^{Footnote 3}

Div.B 9.23.13. Bracing to Resist Lateral Loads Due to Wind and Earthquake

• 2216 - Roof Load Transfer to Braced Wall Panels ^{Footnote 4 Footnote 5 Footnote 6}