Which milestone occurs when all electrical and mechanical equipment has been tested and commissioned and only minor punch-list items remain?

Which milestone occurs when all electrical and mechanical equipment has been tested and commissioned and only minor punch-list items remain?

• A. Substantial Completion
• B. Final Acceptance
• C. Partial Completion
• D. Occupancy Readiness

Answer: (A)

Substantial Completion happens when the major work is finished and the building can function for its intended use, with only minor items left on a punch list. Seeing electrical and mechanical systems tested and commissioned shows those critical components are ready, which is exactly what this milestone recognizes. At this point, the owner can begin using the space for its purpose, and most of the risk and responsibility for the work shifts toward the owner, while the contractor remains obligated to complete the remaining minor items. Final Acceptance would require everything to be fully completed and formally accepted; Partial Completion would occur earlier in the project when significant work still remains; Occupancy Readiness is not a formal milestone in many contracts, though it describes a practical state of readiness.

Substantial Completion happens when the major work is finished and the building can function for its intended use, with only minor items left on a punch list. Seeing electrical and mechanical systems tested and commissioned shows those critical components are ready, which is exactly what this milestone recognizes. At this point, the owner can begin using the space for its purpose, and most of the risk and responsibility for the work shifts toward the owner, while the contractor remains obligated to complete the remaining minor items. Final Acceptance would require everything to be fully completed and formally accepted; Partial Completion would occur earlier in the project when significant work still remains; Occupancy Readiness is not a formal milestone in many contracts, though it describes a practical state of readiness.