Deputy Williams, along with representatives from emergency medical services (EMS) and the Stadtown Fire Department, establishes a Unified Command (UC) structure and announces the location of the command post to all responding units. To provide some order to the ongoing operations, each member of the UC group gives a brief summary of what he or she knows and what activities are underway. After each organization completes its initial report, the three UC Agency Representatives take a deep breath and realize they are dealing with an incident far larger than any of them have ever encountered. They realize that they need to craft an informal initial Incident Action Plan (IAP)