855773644-LEED-v5-BD-C-Reference-Guide-Launch-Edition - Page 240
Extracted Content
The commissioning requirements for the 2019 and 2022 versions of ASHRAE 90.1 are similar. One notable addition to ASHRAE 90.1-2022 that influences the commissioning scope is the requirement for whole-building air-leakage testing for buildings less than 25,000 square feet (2,320 square meters).
Additional considerations Use 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.
Approved Equivalent Standards
Projects may use IECC 2021 instead of Standard 90.1-2019 and IECC 2024 instead of ASHRAE Standard 90.1-2022 . Projects that use IECC instead of ASHRAE must still comply with all additional LEED BD+C: New Construction and LEED BD+C: Core and Shell rating system requirements.
SELECTING THE COMMISSIONING PROVIDER (CXP)
As buildings and systems become more complex and the systems required for Cx expand beyond traditional mechanical equipment, many CxPs will consist of a team instead of one person. Therefore, either an entity or an individual can act as the CxP. For projects that use a CxP entity, designating a single person as the Cx Project Lead or Manager ensures consistency in documentation and quality control of the process.
Minimum qualifications
The CxP must have direct commissioning experience from the design phase through the construction phase for at least two projects with equal or larger scope and complexity. The previous experience should address buildings of similar types and size range, similar types and capacities of HVAC and service water heating equipment, and controls with similar complexity, and the building envelope unless this scope of work is completed independently by a Building Envelope Commissioning Provider (BECxP).
Experience documented for a CxP entity must reflect the team performing the commissioning work for the project.
Eligible entities
Per ASHRAE Standard 90.1-2019, Section 4.2.5.2, the CxP must be completely independent of the design or construction team. Consider the following when selecting a CxP:
U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 230