Which statement describes the impact on turnover when commissioning is applied?

• A. Longer certification process
• B. Increased commissioning duration
• C. Additional rework after occupancy
• D. Shorter building turn-over transition period

Answer: (D)

When commissioning is applied, the handover to operations tends to be smoother and faster because performance is verified and documented before occupancy, and training and O&M information are completed in advance. This means the building is ready to operate as intended at turnover, reducing defects and last‑minute issues that would otherwise delay the transition. The result is a shorter building turnover transition period, since the owner can take control with confidence and fewer post-occupancy reworks. In contrast, leaving commissioning to after occupancy or extending it unnecessarily would create more delays and rework, not shorten the handover.