Johns Hopkins Center for Public Health Preparedness Psychological First Aid workshop is a 6-hour, interactive, face-to-face training that provides public health professionals without former mental health education with the concepts and skills associated with PFA. This specialized training provides health professionals who may be asked, or might volunteer, to respond in times of emergency with perspective on injuries and trauma that are beyond those physical in nature. Additionally, the model is readily applicable to public health settings, the workplace, the military, mass disaster venues, and even the demands of more well circumscribed critical incidents, e.g., dealing with the psychological aftermath of accidents, robberies, suicide, homicide, or community violence.