(1) Except as provided in Sentence (2), this Subsection applies to a building,
(a) of Group A, D, E or F major occupancy classification that is more than,
(i) 36 m high, measured between grade and the floor level of the top storey, or
(ii) 18 m high, measured between grade and the floor level of the top storey, and in which the cumulative or total occupant load on or above any storey above grade, other than the first storey, divided by 1.8 times the width in metres of all exit stairs at that storey, exceeds 300,
(b) containing a Group B major occupancy in which the floor level of the highest storey of that major occupancy is more than 18 m above grade,
(c) containing a floor area or part of a floor area located above the third storey designed or intended as a Group B, Division 2 or 3 occupancy,
(d) containing a Group C major occupancy in which the floor level of the highest storey of that major occupancy is more than 18 m above grade, or
(e) containing a retirement home, where the floor level of the highest storey of the retirement home is more than 18 m above grade.
(2) This Subsection applies to a building or part of a building constructed in conformance with Article 3.2.2.49A. in which the floor level of the highest storey is more than 18 m above grade.