The room occupancy limit is a maximum number of people that are permitted in a room at one time as determined by the local fire code. The fire codes in most jurisdictions dictate the standards or methods for determining the room occupancy limits.
Most fire codes base maximum room occupancy limits on factors such as the number of doors present in a room. Most fire codes follow the standards of the International Building Code and the National Fire Prevention Association. These guidelines establish a method for determining room occupancy by specifying a certain number of people per door and clarify what constitutes an exit. They also consider the use of the room and factors, such as whether it has open areas or is filled with tables and chairs.