Proposed Changes by Code Provision—National Energy Code for Buildings 2025

National Energy Code for Buildings 2025 (Proposed changes to 3 provisions)

Division B

(Proposed changes to 3 provisions)

Part 5 - Heating, Ventilating and Air-conditioning Systems

(Proposed changes to 2 provisions)

5.2.3.1. Application

2109 - Fan Motor Power Threshold for the Application of Prescriptive Requirements

5.2.12.1. Unitary and Packaged HVAC Equipment

2105 - Change SCOP to "Net Sensible COP" in Table 5.2.12.1.-H as the Metric Used for Computer Room Air Conditioners

Part 8 - Building Energy Performance Compliance Path

(Proposed changes to 1 provision)

8.4.2.9. Air Leakage

1943 - Harmonizing the Standard for Whole Building Air Leakage Testing

Date modified:: 2026-04-24