This Testing and Commissioning (T & C) Procedure aims to lay down the minimum testing and commissioning requirements to be carried out on air-conditioning, refrigeration, ventilation and central monitoring and control system installation. Such requirements are applicable to both new installations upon completion and existing ones after major alteration. This course had four main chapter included. Scope of The Testing & Commissioning Works, Tests and Inspections during Construction, Functional Performance Tests and Commissioning and Statutory Inspections.