This document provides guidance on preparing for and responding to an active shooter incident. It defines an active shooter as an individual actively engaged in killing or attempting to kill people in a confined area. Statistics from past incidents show that most shooters acted alone, had a mental illness, and aimed to inflict maximum casualties. The goals of active shooters are typically to kill as many victims as possible or make a political statement. The document stresses the importance of prevention through thorough employee screening and encouraging employees to report any suspicious activity. It also emphasizes having an emergency action plan in place before an incident occurs.