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3. In rooms or areas with special hazards such as laboratories, vocational shops <br />and other areas where hazardous materials in quantities not exceeding the <br />maximum allowable quantity are used or stored. <br />4. Throughout any Group E structure greater than 7,500 square feet (69 m2) in <br />area, which contains more than one fire area, and which is separated into two <br />or more buildings by fire walls of less than 4 -hour fire -resistance rating <br />without openings. <br />5. When the overall height of the building exceeds 45 feet. <br />6. For public school state -funded construction projects see Section 903.19. <br />903.2.4 Group F-1—Amended. <br />An automatic sprinkler system shall be provided throughout all buildings containing a <br />Group F-1 occupancy where one of the following conditions exists: <br />1. A Group F-1 fire area exceeds 7,500 square feet (697 m2). <br />2. A Group F-1 fire area is located more than three stories above the grade plane. <br />3. The combined area of all Group F-1 fire areas on all floors, including any <br />mezzanines, exceeds 7500 square feet (697 m2). <br />4. A Group F-1 occupancy used for the manufacture of upholstered furniture or <br />mattresses exceeds 2,500 square feet (232 m2). <br />5. When the overall height of the building exceeds 45 feet. <br />903.2.4.1 Woodworking operations <br />An automatic sprinkler system shall be provided throughout all Group F-1 <br />occupancy fire areas that contain woodworking operations in excess of 2,500 <br />square feet in area (232 m2) that generate finely divided combustible waste or use <br />finely divided combustible materials. [SFM]A fire wall of less than 4 -hour fire - <br />resistance rating without openings, or any fire wall with openings, shall not be <br />used to establish separate fare areas. <br />903.2.7 Group M—Amended. <br />An automatic sprinkler system shall be provided throughout all buildings containing a <br />Group M occupancy where one of the following conditions exists: <br />1. A Group M fire area exceeds 7,500 square feet (697 m2). <br />2. A Group M fire area is located more than three stories above grade plane. <br />3. The combined area of all Group M fire areas on all floors, including any <br />mezzanines, exceeds 7,500 square feet (697 m2). <br />4. A Group M occupancy used for the display and sale of upholstered furniture <br />or mattresses exceeds 5,000 square feet (465 m2). <br />5. [SFM] The structure exceeds 7,500 square feet (697 m2), contains more than <br />one fire area containing a Group M occupancy, and is separated into two or <br />more buildings by fire walls of less than 4 -hour fire -resistance rating without <br />openings. <br />6. When the overall height of the building exceeds 45 feet. <br />