This document defines and describes processes currently being used to deliver initial assessment of Emergency Department patients. It replaces and builds on the Triage Position Statement published by The Clinical Effectiveness Committee of the College of Emergency Medicine (and ENCA, FEN and RCN) in April 2011. It recognises that the systems utilised have altered and evolved, and will continue to do so. There is also a recognition that a paucity of good quality research into this area makes the provision of advice based on high quality evidence difficult. The initial assessment of patients during a Major Incident is not covered by this document.