To limit the probability that egress routes from a mezzanine will become untenable in a fire situation during the time involved in reaching the exits accessible at mezzanine level, which could lead to delays in the evacuation or movement of persons to a safe place, which could lead to harm to persons.
To clarify that mezzanines are to be provided with exits on the same basis as required for floor areas.
To expand the application of Subsection 9.9.8. to mezzanines that are not included in the definition of floor area.