Which phase includes the activity 'Commissioning authority writes the commissioning plan'?

Which phase includes the activity 'Commissioning authority writes the commissioning plan'?

• A. Pre-design phase
• B. Design phase
• C. Construction phase
• D. Acceptance phase

Answer: (A)

Writing the commissioning plan happens early to set the project’s commissioning direction. The plan outlines how commissioning will be carried out: scope, systems in and out of scope, required tests and verifications, testing methods, data to collect, sequencing, responsibilities, and schedule. Establishing this upfront ensures design decisions and procurement can accommodate the needed commissioning activities rather than creating conflicts later. The pre-design phase is the right time because it aligns the owner’s goals and the commissioning approach before detailed design decisions lock in. As the project moves into design, construction, and acceptance, the plan may be refined or executed, but its initial creation belongs to the pre-design stage.

Writing the commissioning plan happens early to set the project’s commissioning direction. The plan outlines how commissioning will be carried out: scope, systems in and out of scope, required tests and verifications, testing methods, data to collect, sequencing, responsibilities, and schedule. Establishing this upfront ensures design decisions and procurement can accommodate the needed commissioning activities rather than creating conflicts later. The pre-design phase is the right time because it aligns the owner’s goals and the commissioning approach before detailed design decisions lock in. As the project moves into design, construction, and acceptance, the plan may be refined or executed, but its initial creation belongs to the pre-design stage.