AN ACT relating to the Kentucky Building Code.

HB 579 modifies Kentucky's building code to allow multi-unit residential buildings (R-2 occupancy) with fewer than six stories to use a single exit stairway, primarily affecting new residential construction projects. Key provisions require buildings to have no more than four dwelling units per floor, include corridors separating unit doors from exits, limit travel distance to exits to 20 feet, and ensure maximum travel distance within the building does not exceed 125 feet. The bill also mandates specific safety features like fire-rated doors and prohibits direct access from other building areas like parking garages to the single exit stairway. This change aims to provide flexibility for smaller residential developments while maintaining safety standards.