Which chapter of the IBC covers special detailed requirements based on use and occupancy?

Chapter 4 of the International Building Code (IBC) focuses on special detailed requirements based on the use and occupancy of buildings. This chapter provides guidelines that address how the type of occupancy influences the design, construction, and overall safety of a building, taking into account factors like the potential hazards, the number of occupants, and the specific activities the building is intended to support.

Understanding the detailed requirements related to use and occupancy is essential for fire alarm systems, as different occupancies might have varying fire risks, requiring tailored approaches to fire alarm design and implementation. For instance, assembly occupancies will have different needs compared to healthcare facilities, and Chapter 4 outlines these specific considerations to ensure that code compliance effectively mitigates risks associated with various building uses.

The other chapters mentioned pertain to different aspects of building design and safety but are not primarily focused on detailed requirements tied to occupancy type. Thus, the emphasis placed in this chapter on how occupancy shapes building requirements makes it the correct choice in this context.