Who is responsible for Construction Phase Construction Cx Plan?

• A. Shared
• B. Architect
• C. Contractor
• D. CxA

Answer: (D)

The Construction Phase Cx Plan is led by the CxA. This plan lays out how commissioning will be carried out during construction—defining the systems to be tested, test procedures, responsibilities, data to be collected, and the schedule for verification. The CxA, as the independent party responsible for verifying that the installed systems operate as intended and meet the owner's requirements, develops and maintains this plan, coordinating with the owner, design team, and contractor as needed. The architect focuses on design intent, while the contractor handles installation and execution, but the plan itself is owned and driven by the CxA to ensure objective, thorough verification.