Section 21(iii) in The Rajasthan P.W.D. Contractor's Labour Regulations, 1966
(iii)Working Platform, Gangways and Stairways should be so constructed that they should not sag unduly or unequally, and if the height of the platform of the Gangway or the Stairway is more than 12 feet above ground level and for floor level, they should be closely boarded, should have adequate width and should be suitably fenced, as described in (ii) above.
