3303.12.2.2 Increasing the height of the elevator or hoist during the construction or enlargement of a building.
BC § 3303.12.2.2
During the construction or enlargement of a building, when the topmost working deck exceeds 75 feet (22 860 mm) in height above the lowest level of the ground and subsequent to complying with Section 3303.12.2.1, all floors that are closed to the public and that are at least 4 stories or 48 feet (14 630 mm) below the topmost working deck, whichever is less, or for a building whose primary structural system consists of structural steel, at least 4 stories or 64 feet (19 507 mm) below the topmost working deck, whichever is less, shall be served by an elevator or hoist meeting the requirements of this section. However, no more than two weeks after the topmost working deck has become a walkable floor, a hoist or elevator meeting the requirements of this section shall be brought up to serve all remaining floors in the building that are closed to the public.
