mylaw.myBrowseState OrdinanceBuildings Ordinance, 1994Section 137Section 137Protected shafts as ventilating ductof Buildings Ordinance, 1994State OrdinanceIn forceProvision 125 of 237Section 137Read in full context — Buildings Ordinance, 1994 →←PreviousSection 136 · Fire mode of operationNextSection 138 · Protected shafts consisting of staircase→