The Cx Plan (is / is not) updated during the life of a project to reflect changes in planning, design, construction, and occupancy and operations.

• A. IS NOT
• B. IS
• C. OFTEN
• D. NEVER

Answer: (B)

Commissioning plans must be living documents that are updated as the project evolves. As planning, design, construction, and occupancy/operations change, the Cx Plan is revised to reflect those changes, ensuring the verification tests, acceptance criteria, responsibilities, and schedule stay aligned with current design intent. This keeps commissioning activities relevant and ensures that what is tested and verified matches what is actually being built and how the building will operate. If the plan isn’t updated, you risk testing against outdated assumptions, missing changes to equipment or sequences, and not meeting the owner’s requirements. The statement that the plan is updated throughout the project life best captures how commissioning should adapt to changes.