An effective Trauma Activation Criteria (TAC) should balance sensitivity to identify patients requiring immediate multi-team intervention with accuracy to prevent unnecessary resource allocation that could compromise patient care in other hospital areas. TAC are often split into two tiers, “trauma responds” and “trauma alerts”. Trauma responds activate a multi-specialty trauma team and the latter activates an emergency department only trauma team. The majority of TAC rely on three main parameters: physiological, anatomical and mechanism. Physiological and anatomical criteria have a better predictive value for severe injury compared to mechanism and subsequently many major trauma centres have removed mechanism. This quality improvement project (QIP) took place within Sunshine Coast University Hospital (SCUH), currently a level 3 regional trauma centre. The QIP reviewed 72 patients who activated a trauma respond over a three-month period and applied a new modified TAC. Data was gathered from the trauma registry and iEMR. The modified TAC removed mechanism from its trauma respond criteria. The updated criteria decreased trauma respond activations by 72%, resulting in a substantial decrease in resource utilisation associated with unnecessary trauma respond activations. The accuracy of trauma response activations improved from 9.7% to 35%. Importantly, the under-triage rate was 0%, indicating that no patients who warranted a trauma response were missed under the new criteria. The refined TAC will help develop SCUH into a level 2 trauma centre.