Which section of the International Building Code defines occupancy classifications?

The correct answer is found in IBC Section 305, which specifically addresses occupancy classifications. This section outlines the various categories of occupancy, such as residential, educational, assembly, business, and others. Each classification has different implications for design, construction, and occupancy load requirements.

Understanding occupancy classifications is crucial as it informs the design and safety considerations of a building based on how it will be used. This classification influences aspects such as egress requirements, fire protection measures, and overall building design, as different uses have varying risks and user needs.

Other sections might discuss related topics, but Section 305 is the definitive guide for defining occupancy classifications within the International Building Code.