403.5.1 Remoteness of interior exit stairways.
BC § 403.5.1
Required interior exit stairways shall be separated by a distance not less than 30 feet (9144 mm) or not less than 1/4 of the length of the maximum overall diagonal dimension of the building or area to be served, whichever is less. The distance shall be measured in a straight line between the nearest points of the enclosure surrounding the interior exit stairways. In buildings with three or more interior exit stairways, no fewer than two of the interior exit stairways shall comply with this section. Stairs sharing any common wall, floors, ceilings, scissor stair assemblies, or other enclosures shall be counted as one interior exit stairway. Exception: Group R-2 occupancies.
