Relating to municipal regulation of stairway requirements in certain multifamily residential buildings.

HB 5148 prohibits municipalities with professional fire departments from requiring more than one stairway in qualifying multifamily residential buildings. It specifically applies to buildings with no more than six stories, four dwelling units per floor, and meeting 11 safety conditions - including sprinkler systems, 2-hour fire-resistance ratings for stairways, and limited openings. The bill directly affects developers and local governments in Texas that regulate housing construction. It replaces existing municipal stairway requirements with these standardized safety provisions for eligible buildings. The law takes effect upon enactment and does not apply to high-rise buildings or structures with more than four units per floor.