Section 151(a) in U.P. Building And Other Construction Workers (Regulation Of Employment And Conditions Of Service) Rules, 2009
(a)runways or ramps provided for use by building workers is not less than four hundred and thirty millimetres in width and is constructed of not less than twenty-five millimetres thick planking or any other material of adequate strength to withstand the required load supported substantially in relation to the span and braced of such runway or ramp and design and construction of such runways or ramp is in accordance with the relevant national standards;
