Singapore legislation
Regulation 18
of Workplace Safety and Health (Operation of Cranes) Regulations 2011
Regulation 18
Appointment and duties of rigger
Subregulation 1
It shall be the duty of the responsible person to appoint a rigger before any lifting operation involving the use of any mobile crane or tower crane is carried out in the workplace by a crane operator.
Subregulation 2
It shall be the duty of the responsible person —
not to appoint any person as a rigger in a workplace unless the person has successfully completed a training course acceptable to the Commissioner to equip him to be a rigger; and
to ensure that the rigger who is appointed under paragraph (1) is attired in such a way as would distinctively identify him as a rigger.
Subregulation 3
No person shall rig up loads for any lifting operation by a mobile crane or tower crane unless he is a rigger appointed in accordance with paragraph (1).
Subregulation 4
It shall be the duty of a rigger appointed under paragraph (1) to —
check the slings to be used for slinging the loads to ensure that the slings are of good construction, sound and suitable material, adequate strength and free from patent defect;
ensure that an adequate number of legs of the sling are used and that the slinging angle is correct so as to prevent the sling from being overloaded during the hoisting;
ascertain the weight of the load which is to be lifted and inform the crane operator of the weight of the load;
ensure that only proper lifting gears are used in conjunction with the sling;
ensure that the load to be lifted is secure, stable and balanced;
ensure that any loose load (which includes any stone, brick or tile) is placed in a receptacle to prevent the load or part thereof from falling during the lifting operation;
place adequate padding at the edges of the load which come in contact with the sling so as to prevent the sling from being damaged; and
report any defect in the lifting gear to the lifting supervisor.