What type of occupancy is separated into several subdivisions based on the relative hazard or risk to life created by activity performed within the structure?

• A. Factory/industrial
• B. Health/care
• C. Educational/institutional
• D. Military/tribal

Answer: (A)

In this concept, occupancies are sometimes divided inside a building based on how dangerous the activities inside are to the people present. Factory and industrial spaces often host a wide mix of processes, machines, fuels, and chemicals, which creates varying levels of fire and life-safety risk within the same facility. Because of that, this type of occupancy is subdivided into hazard-based categories—like light hazard, ordinary hazard, and extra hazard—to match protection measures (construction, detection, suppression, egress) to the specific risk in each area.

The other types are not typically subdivided by hazard in the same way. Health care and educational/institutional occupancies are categorized by their use and occupant needs, not by activity-driven hazard subdivisions inside the structure to the same degree. Military/tribal isn’t the occupancy type used for this hazard-based subdivision approach.