Who is responsible for document control during the Design Phase?

• A. Project Manager
• B. CxA
• C. Architect
• D. Contractor

Answer: (B)

Document control during the Design Phase is about keeping all commissioning-related information accurate, current, and accessible so verification activities can be planned and executed properly. The CxA oversees the commissioning process and thus acts as the single point of truth for design documentation, including owner project requirements, the commissioning plan, system definitions, submittals, design changes, and test procedures. This centralized control ensures versions are tracked, decisions and approvals are documented, and the right information reaches the design team, owner, and future operators in a coordinated way. While the architect, project manager, and contractor contribute the technical documents, the responsibility for maintaining the integrity and availability of commissioning documents during design sits with the CxA to keep the design aligned with commissioning objectives.