Which statement defines Commissioning?

• A. The process of assuring that all systems and components of a building or industrial plant are designed, installed, tested, operated, and maintained according to the operational requirements of the owner or final client.
• B. The removal of equipment from service.
• C. The process of decommissioning.
• D. A procedure for emergency stopping.

Answer: (A)

Commissioning is the process of assuring that all systems and components of a building or industrial plant are designed, installed, tested, operated, and maintained according to the operational requirements of the owner or final client. It ensures that everything works together as intended before full operation, verifying performance, safety, and reliability from design through initial startup to ongoing operation.

This is particularly important for flammable-refrigerant refrigeration systems, where proper integration of design, controls, safety interlocks, ventilation, detection, and maintenance practices must be demonstrated to meet the owner's requirements and safety standards.

The other statements describe removing equipment from service, decommissioning, or emergency stopping—activities focused on shutting down or retiring equipment, not on ensuring the installed systems function correctly to meet the owner's needs.