Section 3104.1 is amended as follows: This section shall apply to connections between buildings, exterior to buildings such as pedestrian walkways, stairs, ramps or tunnels, located at, above or below grade level, that are used as a means of travel by persons. The pedestrian walkway shall not contribute to the building area or the number of stories or height of connected buildings. Section 3104.3 is amended as follows: Any stair, ramp or walking surface that is used by a pedestrian as a means of travel shall comply with 2021 IBC chapter 10 and Sec. 4-180 Accessibility. Bike trough or similar features shall be located at the sides/edges of the stairs and shall have handrail within 30 inches. Section 3104.3 is amended to read as follows: "Construction." The pedestrian walkway shall be of noncombustible construction.