Section 20.1.3.2 is amended to read as follows: "An automatic sprinkler system shall be installed in all permanent and portable amusement buildings. The main water-flow switch shall be electrically supervised. The sprinkler main cutoff valve shall be supervised. When the amusement building is portable, the sprinkler water-supply system may be a temporary type, as approved by the AHJ.
EXCEPTION: An automatic sprinkler system need not be provided when the floor area of a portable amusement building is less than 1,000 square feet and the exit travel distance from any point is less than 50 feet."
Haw. Code R. § 12-45.2-98