PDFWAC 296-78-775
Signalpersons.
(1) Signalpersons must give all the signals to the operator in accordance with established standard signals as illustrated in WAC 296-78-830 of this chapter.
(2) A designated person must be responsible for the condition and use of all hoisting accessories and for all hitches.
(3) Before an operator moves a crane upon which an empty chain or cable sling is hanging, both ends of the sling must be placed on the hook.
(4) Signalpersons, where necessary, must walk ahead of the moving load and warn people to keep clear of it. They must see that the load is carried high enough to clear all obstructions.
(5) Signalpersons must notify the person in charge in advance when an extra heavy load is to be handled.
(6) No person will be permitted to stand or pass under an electric magnet in use.
(7) The electrical circuit for electric magnets must be maintained in good condition. Means for taking up the slack cable must be provided.