Which IBC chapter addresses the requirements for fire-resistant rated assemblies?

The International Building Code (IBC) categorizes various aspects of construction and safety in its chapters. Chapter 7 specifically addresses fire-resistant rated assemblies, outlining the requirements for materials and construction methods needed to ensure that specific elements of a building can withstand fire for a determined period. This chapter covers wall assemblies, floor assemblies, and other integral parts of construction that must meet fire-resistance ratings to protect occupants, property, and to allow for safe egress during emergencies.

In contrast, the other chapters focus on different aspects of building code requirements: Chapter 4 deals with general building heights and areas, Chapter 5 covers the general building requirements, including the nature of materials, site elements, and occupancy types, while Chapter 6 lays out concrete provisions. Thus, the focus on fire-resistant assemblies is distinctly found within Chapter 7, making it the correct choice for this question.