Who is typically the commissioning authority (CxA), and what independence should they maintain?

• A. The building owner's facilities manager, who is biased.
• B. A qualified third-party or owner-appointed professional who independently verifies and documents system performance.
• C. A contractor performing the work.
• D. An external auditor not involved in project.

Answer: (B)

A commissioning authority should be an independent, qualified professional who can objectively verify and document system performance. The best choice is a qualified third-party or owner-appointed professional who independently verifies and documents how the building systems actually operate. This independence prevents conflicts of interest that could arise if the CxA were a contractor or someone closely tied to the design or construction team, ensuring credible testing, observation, and documentation of performance. An internal facilities manager may introduce bias, and a contractor-focused role lacks the objectivity needed for true verification. An external auditor not involved in the project can be independent, but may not be integrated enough to coordinate the commissioning activities throughout the project lifecycle.