Our Project is a Fire Station that has an area defined as a "hot zone" which includes the apparatus bay, decontamination room, a restroom, tool storage, lawn storage, turnout gear lockers, a janitor's closet, EMS storage and a riser room. Many of these spaces on an individual level are considered potential hazardous materials spaces. Can the space be treated as one large area, or are closers required on each door in the space? There are already closers specified on the corridors to the "living/working" part of the station.