855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 128

Extracted Content

sample review (minimum 10%) of completed contractor documentation for QA/QC.

REQUIREMENTS EXPLAINED

For the elements within the project scope of work, the prerequisite stipulates that projects perform commissioning for building systems, controls, and the building envelope in compliance with the minimum requirements of ASHRAE Standard 90.1, and additional provisions of the LEED ID+C rating system .

Automatic achievement of prerequisite through EAc4: Enhanced Commissioning, Option 1 Projects that achieve EAc4: Enhanced Commissioning, Option 1 automatically comply with the prerequisite requirements, since the credit requirements encompass all commissioning requirements from the ASHRAE 90.1 standard referenced in EAp3: Fundamental Commissioning .

Therefore, when planning commissioning scope, review the EAc4: Enhanced Commissioning, Option 1 requirements, paying special attention to the required timing for CxP engagement during predesign or very early in the commissioning process to accomplish the broader commissioning scope of work required for credit compliance.

Tables 1 below provide a comparison of required tasks for EAp3: Fundamental Commissioning compared to EAc4: Enhanced Commissioning, Option 1 .

Required ASHRAE Standard 90.1 version Projects registered before January 1, 2028, can reference ASHRAE Standard 90.1-2019, or any later version. Projects registered on or after January 1, 2028, must use ASHRAE Standard 90.1- 2022 or later.

The commissioning requirements are similar for the 2019 and 2022 versions of ASHRAE 90.1 .

Additional considerations Using a single version of ASHRAE Standard 90.1 for EAp2: Minimum Energy Efficiency, EAp3: Fundamental Commissioning, and EAp4: Energy Metering and reporting streamlines documentation efforts.

U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 117