What standard outlines the hand signals to be used by construction tower crane operators?

The standard that outlines the hand signals to be used by construction tower crane operators is ASME B30.3. This standard provides comprehensive guidelines and safety practices for the operation of tower cranes, including the signaling methods that operators and ground personnel must use to communicate effectively during crane operations. Proper communication through hand signals is vital in preventing accidents and ensuring that lifting operations are executed safely and efficiently.

The other standards mentioned relate to different aspects of safety and operational protocols. OSHA 1910.178 addresses the training and operation of powered industrial trucks but does not specifically cover crane signaling. ANSI Z535 is focused on safety signage and accident prevention but does not detail hand signals for crane operation. ISO 9001 pertains to quality management systems and is not related to crane operation standards. Thus, ASME B30.3 is the relevant standard for crane hand signals in construction contexts.