Section 49(2) in The Dock Workers (Safety, Health And Welfare) Regulations, 1990
(2)Sub-regulation (1) shall not apply to:(i)pitched chains working on sprocket or sprocketed wheels;(ii)rings, hooks and swivels permanently attached to pirched chain, pulley block or weighing machines; and(iii)hooks and swivels having ball bearings or other case hardened parts.
