(1)
Except as provided in Sentence (2), a door that provides access to exit from a room shall
(a)
be a sliding door, or
(b)
swing on its vertical axis.
(2)
A door that opens into a facility providing access to exit from a room that is used for a Group G, Division 1 major occupancy, other than one housing livestock with a below-floor storage area for liquid manure, shall swing on a vertical axis in the direction of travel to the exit.