(1) The cutter must be responsible for determining if a tree can be safely pulled. If, for any reason, the cutter believes the tree pulling cannot be completed safely, the tree must be conventionally fell.

(2) When using a radio, positive radio communications must be maintained at all times between the tree pulling machine and cutter when tree pulling. An audible signal must be blown when the initial pull is made on the tree and the line is tightened. Hand signals, instead of radio communications and an audible signal, may be used only if the cutter is clearly visible to the tree puller operator.

(3) A choker with bell, or a line and sleeve shackle must be used as the means of attachment around the tree when tree pulling. (See also WAC 296-54-54710(4).) The bight on the line must be the minimum necessary to hold the choker or line around the tree.

(4) The tree pulling machine must be equipped with a torque converter, fluid coupler, or an equivalent device to ensure a steady even pull on the line attached around the tree.

(5) The tree pulling line must have as straight and direct path from the machine to the tree as possible. Physical obstructions that prevent a steady even pull on the tree pulling line must be removed or the line must be rerouted.

(6) Using a physical object such as a stump or tree in lieu of a block, in order to change tree pulling lead, is prohibited.