Which of the following is NOT an acceptance-phase item?

• A. Review TAB report
• B. Complete FPTing
• C. O&M training and documentation
• D. Update Cx plan

Answer: (D)

The main idea is to know what activities belong to the acceptance phase in the commissioning process. Acceptance-phase tasks are the verification and turnover activities that show the building systems meet the owner’s requirements and are ready for operation.

Reviewing the TAB report is an acceptance activity because it verifies that building systems are balanced and documented as intended before occupancy. Completing Functional Performance Testing is also part of acceptance because it demonstrates that systems perform under expected conditions and meet design intent. Providing O&M training and documentation is another acceptance activity because it ensures the owner can operate and maintain the systems after turnover.

Updating the Cx plan, on the other hand, is a planning/document-control activity used to guide the commissioning process. It’s typically done during planning and execution to reflect changes and scope, not a verification or turnover task demonstrating system performance. So it isn’t considered part of the acceptance-phase items.