(1) Except as provided in Sentence (4), the clear opening width of doorways shall comply with Sentence (2) at,
(a) exit doors, and
(b) doors that open into or are located,
(i) within a public corridor, or
(ii) within another facility that provides access to exit from a suite.
(2) Doorways described in Sentence (1) shall be not less than,
(a) 800 mm wide where there is only one door leaf,
(b) 800 mm wide where multiple-leaf doors are installed with only one active leaf with a latching mechanism described in Article 9.9.6.7., and
(c) 1210 mm wide where multiple-leaf doors are installed with two active leaves.
(3) In doorways described in Sentence (1) that have multiple-leaf doors installed,
(a) no active leaf shall be less than 810 mm wide where only one leaf is active, and
(b) no single leaf shall be less than 610 mm wide where two leaves are active.
(4) Doorways serving a house or an individual dwelling unit need not comply with Sentence (2).