Children and adolescents should be included in exercises and drills to the extent that their involvement advances readiness to meet their unique needs in the event of a crisis and/or furthers their own preparedness or resiliency. However, there is also a need to be cautious about the potential psychological risks and other unintended consequences of directly involving children in live exercises and drills. These risks and consequences are especially a concern when children are deceived and led to believe there is an actual attack and not a drill and/or for high-intensity active shooter drills. High-intensity active shooter drills may involve the use of real weapons, gunfire or blanks, theatrical makeup to give a realistic image of blood or gunshot wounds, predatory and aggressive acting by the individual posing to be the shooter, or other means to simulate an actual attack, even when participants are aware that it is a drill. This policy statement outlines some of the considerations regarding the prevalent practice of live active shooter drills in schools, including the recommendations to eliminate children' s involvement in high-intensity drills and exercises (with the possible exception of adolescent volunteers), prohibit deception in drills and exercises, and ensure appropriate accommodations during drills and exercises based on children' s unique vulnerabilities. BACKGROUND Historically, children of all ages have generally not been included in crisis preparedness efforts in the United States, including participation in live drills and exercises, and certainly not to the extent that children are represented in the general population. This lack of planning and practice for the needs of children represents a significant oversight that increases the vulnerability of children in the event of a crisis. 1 However, increasing concerns about the risk of mass casualty events in schools throughout the United States have given rise to crisis preparedness efforts that now include