Section 70(2) in The Dock Workers (Safety, Health And Welfare) Regulations, 1990
(2)When more than one gang of dock workers are employed in dock work simultaneously in a hold, it shall be ensured that,-(a)the operation of loading or unloading is harmonised to avoid dangers to the working gangs from one another;(b)the slung cargo of one gang will not endanger the dock workers of the other gang;(c)where gangs are working at different levels, a net shall be rigged and securely fastened to prevent dock workers from falling down or cargo falling on to dock workers below;(d)overcrowding of gangs in a section of the hold is avoided.
