Commissioning Issues Log (CIL) is used to track which items during commissioning?

• A. Commissioning Issues Log (CIL)
• B. Bill of Materials (BOM)
• C. Building Monitoring System (BMS)
• D. AHA Documentation

Answer: (D)

The main idea is that the Commissioning Issues Log is used to capture and track problems found during the testing and verification phase so they’re resolved before building handover. These issues, along with how they were addressed, feed into the acceptance and handover package. That’s why the documentation used to summarize what remains outstanding at handover—the AHA Documentation—is the best fit. The Bill of Materials lists parts and materials, not commissioning issues, and the Building Monitoring System refers to the actual monitoring setup rather than the log of commissioning problems. So, recording those issues and their resolutions within the AHA Documentation aligns with the handover process.