The National Fire Protection Association (NFPA) has issued a new provisional standard (NFPA 3000) for an Active Shooter/Hostile Event Response (ASHER) Program. The provisional standard, which became available on the NFPA website on May 1, 2018, is based on four main principles: unified command, integrated response, planned recovery, and whole-community involvement. The standard is based on four main principles: unified command, integrated response, planned recovery, and whole community involvement. The intent of the standard is to develop a common language for multidisciplinary first responders, prepare for a faster medical response, involve law enforcement in first aid and triage, allow for emergency medical service 9EMS) into the “warm zone,” and recognize that people and businesses that are not directly involved in an incident are still affected by it. Recovery community- wide takes months and years.