Emergency workers perform a vital role in our society. They protect the rule of law, ensure our safety and provide assistance in emergencies. Surveys consistently show that emergency workers are one of the most valued and trusted occupational groups. However, there is increasing realisation that emergency work can come at a cost. Large numbers of emergency workers report ongoing psychological consequences from exposure to trauma, most notably post-traumatic stress disorder (PTSD). This guideline helps emergency workers and their clinicians as they work together towards recovery.