What is the hallmark of both AABC and ACG?

• A. Independence
• B. Global reach
• C. Low cost
• D. Large membership

Answer: (A)

Independence ensures objectivity in commissioning work. Both AABC and ACG require the commissioning authority to operate independently of designers and contractors, so there’s no conflict of interest that could bias evaluations, tests, or recommendations. This separation is essential because the CxA’s role is to verify that systems perform according to the owner’s requirements and design intent, not to please any party in the project. When the CxA remains independent, findings are credible, issues are documented and resolved based on performance data, and acceptance decisions reflect actual outcomes. Attributes like global reach or large membership describe scale, not the defining quality of the commissioning process; low cost does not establish trust. Independence is what ensures objective verification and accountability.