The highlighted building is Guard Headquarters. This building housed the offices, meeting rooms, shooting range, lockers and changing rooms where the guards changed from their street clothes to Guard Uniforms. This is also one of the few buildings that had a full basement. The shooting range, lockers and changing rooms and amplifiers for the plant wide Public Address System were housed in this basement. When visitors came to the Plant this is where they were taken to get a "Visitors Badge". Radio communications to the guards on patrol were also centered here.