Maritime Occupational Health and Safety Regulations
(2) Subject to subsections (3) and (4), the safe working load of materials handling equipment must be clearly marked on the equipment or on a label securely attached to a permanent part of the equipment in a position where the mark or label can be easily read by the operator of the equipment.
(3) If derricks are certified for and marked with a safe working load for operation in union purchase, the load lifted when in union purchase must not be more than that safe working load.
(4) If derricks are operated in union purchase and they are not certified and marked in accordance with subsection (3)
(a) the load lifted must not be in excess of one-half of the safe working load of the derrick with the smaller capacity;
(b) the angle formed by the cargo runners must not be more than 120°; and
(c) the attachments and fittings of the cargo runners, guy wires and preventers must be suitable for the loads to which they are subjected.
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