This unit involves the skills and knowledge required to screen articles by interpreting 3D computed tomography (CT) X-ray images at a transport security protection workplace in compliance with relevant regulatory requirements and national operating standards.It includes setting up and testing 3D CT X-ray screening equipment; operating 3D CT X-ray screening equipment; interpreting 3D CT X-ray images; identifying weapons, explosives and prohibited items, and taking appropriate action when weapons, explosives and prohibited items are detected.This unit addresses transport security technical skill requirements (physical, mental and task-management abilities) related to transport security duties of aviation, maritime and air cargo security personnel, and contributes to safe and effective performance in operational transport security environments.Operations are conducted as part of transport security across a variety of operational aviation, maritime and air cargo contexts within the Australian industry.Work is performed independently or under limited supervision as a single operator or within a team environment.Licensing, legislative, regulatory or certification requirements are applicable to this unit.