Section 79 in West Bengal Municipal (Building) Rules, 2007
79. Requirements regarding staircase.
All buildings referred to in rule 76 shall be provided with such number of staircases as the Board of Councillors may require. Under no circumstances, the number of staircases shall be less than two in the case of a building of more than fourteen metres and a half in height and one of them shall be on the external face of the building and shall be enclosed or pressurised type as per requirements of West Bengal Fire Services. In case the staircase or staircases are not facing external surface of the building or not having ventilation shaft, mechanical ventilation is required.
