5.2.10 Signals
1) All signs (hand, mechanical or electrical) must be cleared and distinct.
2) Handheld radios (walkies/talkies) will be available at all times to crane operations, signalmen and riggings with critical roles or out-of-site situations or in other scenarios as dictated by lifting plan.
3) TRCwill establish and enforce a common, internationally will be taught, used and referenced on the TRCwork site