In which type of occupancy would you find a library?

A library typically falls under the category of assembly occupancy. This classification is due to the nature of how libraries are used; they serve as spaces where groups of people gather for educational purposes, reading, study, and other communal activities. Assembly occupancies are designed to accommodate people in rooms or areas where they may be in attendance for various activities such as speeches, lectures, or community gatherings, which are all common within the purpose of a library.

While libraries might have certain functions that overlap with business or institutional occupancy—such as being open for public use and having a structured operation—they primarily facilitate gatherings and communal activities, aligning them more closely with assembly occupancy. This classification is important for fire safety regulations, egress considerations, and occupancy load calculations that directly influence design and operational standards within such spaces.