(1)
Except as provided in Sentence (2), for the purposes of this Part, existing buildings shall be classified as to their construction and occupancy as provided for in Sentence 11.2.1.1.(1).
(2)
For the purpose of Parts 10 and 11, the calculation of the construction index and hazard index for Group G major occupancy is permitted to be based on Group F, Division 2 major occupancy.