RT Journal Article SR Electronic T1 New NHS Prehospital Major Incident Triage Tool: from MIMMS to MITT JF Emergency Medicine Journal JO Emerg Med J FD BMJ Publishing Group Ltd and the British Association for Accident & Emergency Medicine SP 800 OP 802 DO 10.1136/emermed-2022-212569 VO 39 IS 11 A1 Vassallo, James A1 Moran, Chris G A1 Cowburn, Philip A1 Smith, Jason YR 2022 UL http://emj.bmj.com/content/39/11/800.abstract AB Triage is a key principle in the effective management of major incidents and is the process by which patients are prioritised on the basis of their clinical acuity. However, work published over the last decade has demonstrated that existing methods of triage perform poorly when trying to identify patients in need of life-saving interventions. As a result, a review of major incident triage was initiated by NHS England with the remit to determine the optimum way in which to triage patients of all ages in a major incident for the UK. This article describes the output from this review, the changes being undertaken to UK major incident triage and the introduction of the new NHS Major Incident Triage Tool from the Spring of 2023.