The Chief of the Fire Department, the Fire Marshal, or a deputy of either shall survey each mercantile and manufacturing establishment, school, place of assembly, hospital, place of detention, hotel and multifamily house, and shall specify suitable fire detecting devices or extinguishing appliances which shall be provided in or near boiler rooms, kitchens of restaurants, clubs and like establishments, storage rooms involving considerable combustible material, rooms in which hazardous manufacturing processes are involved, garage sections and other places of a generally hazardous nature. Such devices or appliances may consist of automatic fire alarm systems, automatic sprinkler or water spray systems, standpipe and hose, fixed or portable fire extinguishers of a type suitable for the probable class of fire, or suitable asbestos blankets, manual or automatic covers, or carbon dioxide or other inert gas extinguishing systems. In specially hazardous processes or storages, appliances of more than one type or special systems may be required.
Sprinkler systems, standpipe systems, fire alarm systems and other fire protective or extinguishing systems or appliances which have been installed in compliance with any permit or order or because of any law or ordinance shall be maintained in operative condition at all times, and it shall be unlawful for any owner or occupant to reduce the effectiveness of the protection so required; except this shall not prohibit the owner or occupant from temporarily reducing or discontinuing the protection where necessary to make test, repairs, alterations or additions. The Chief of the Fire Department, the Fire Marshal, or a deputy of either shall be notified before such test, repairs, alterations or additions are started, unless the work is to be continuous until completion.