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Extracted Content

Timing for CxP engagement

Identify a CxP no later than the end of the design development phase. The CxP is primarily responsible for leading the design and construction team through all aspects of the mechanical, electrical and plumbing (MEP) systems and building envelope systems commissioning, respectively.

Additional considerations A single entity can perform all MEP and Building Envelope system commissioning efforts, provided the entity meets the minimum requirements.

For projects that use different qualified individuals to perform various Cx tasks, ensure sufficient collaboration within the team to provide continuity from design through operations. For example, an entity may have different CxP team members review the design documents than the team witnessing testing.

SCOPE OF FUNDAMENTAL COMMISSIONING

The prerequisite requires that projects conform with ASHRAE Standard 90.1 requirements for all referenced systems and provisions outlined in the LEED BD+C: New Construction and LEED BD+C: Core and Shell rating system.

Projects using ASHRAE Standard 90.1-2022 for compliance guidance must include relevant verification, testing, and commissioning for the additional efficiency measures and thermal break requirements from ASHRAE Standard 90.1-2022 .

Systems requiring commissioning

At a minimum, commissioned systems must include all energy-using systems within the project boundary that are referenced in ASHRAE 90.1 Sections 5–10, including the building envelope, HVAC, service water heating, power, lighting, on-site renewable energy, energy monitoring systems, refrigeration equipment, energy storage systems, load management systems, and other energy-using systems within the project’s boundary.

Owner’s Project Requirements (OPR)

The Owner’s Project Requirements (OPR) document the functional requirements of the building. It also details the expectations of the building’s use and operation. The OPR includes objectives for the project, which verify that all stated goals integrate with the building design, construction, and operation.

U.S. Green Building Council LEED v5 Reference Guide for Building Design and Construction, April 2025 Launch Edition 232