Who is responsible for Acceptance Phase TAB Verification?

• A. Shared
• B. CxA
• C. CxT
• D. CxP

Answer: (C)

Acceptance Phase TAB Verification is a hands-on field task carried out by the person who directly performs Test, Adjust, and Balance activities. The Commissioning Technician conducts the TAB procedures, collects measurements with calibrated instruments, verifies airflow and flow rates, and documents the results in the TAB report for the acceptance phase. The Commissioning Authority oversees the overall process and signs off when results meet criteria, but does not typically perform the field TAB measurements. The Commissioning Project role is focused on planning and coordination rather than executing the TAB verifications. So, the Commissioning Technician is the best fit for this responsibility because the task requires on-site testing and data collection that this role specializes in.