Final answer:
The IBC identifies five occupancy classifications with sub classifications as Residential, Educational, Institutional, Assembly, and Business, which help guide the construction and design of buildings based on their use.
Step-by-step explanation:
According to the International Building Code (IBC), the five occupancy classifications that have sub classifications are Residential, Educational, Institutional, Assembly, and Business. These classifications are created to ensure the safety and welfare of occupants and to guide the design and construction of buildings according to their intended use. For example, Residential classifications may include a range of dwelling types from single-family homes to apartment buildings. Educational facilities might encompass schools and daycare centers. Institutional facilities could include hospitals and prisons. Assembly covers locations where groups gather, such as theaters and churches. Lastly, Business classifications focus on buildings used for office or professional services.