Section 9-503 - Automatic fire extinguishing systems in specified buildings(a) Each building constructed after July 1, 1977, that is intended to house 50 or more occupants who, because of age, blindness, disability, or physical or mental illness, are unable to evacuate the building without assistance in case of fire, shall be protected throughout the entire building by a system that is:(1) designed to detect and extinguish a fire automatically while sounding an alarm; and(2) installed in accordance with accepted engineering practices approved by the authority with jurisdiction.(b)(1) An order for compliance with the requirements of this section that is issued in accordance with the authority granted under Title 6, Subtitle 3 of this article may be appealed to the State Fire Prevention Commission.(2) An order for compliance with the requirements of this section that is issued in accordance with the authority granted by a local law, ordinance, or regulation may be appealed as provided by law, ordinance, or regulation of the local jurisdiction.