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Text from
the OSHA Logging Compliance Directive, CPL 2-1.22
J.
Definitions and clarifications
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11. Paragraph (h) Tree Harvesting
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g. Paragraph (h)(3)(i) - Bucking and limbing
(1) The final rule has been revised to require that whenever rolling or sliding of the
tree is reasonably foreseeable, bucking and limbing must be done from the uphill side of
the tree. The revised final rule does not permit bucking and limbing to be done from the
downhill side. Where a tree cannot be limbed or bucked from the uphill side, the tree must
be moved to a stable position where there is no potential for the tree to roll or slide.
(2) Because of the hazards associated with bucking and limbing and the high injury rate
in these operations, employees must be trained to evaluate the following five potential
hazards associated with limbing and bucking:
(a) Overhead hazards;
(b) Spring poles;
(c) Forward butt movement, to assess back pressure on limbs;
(d) Butt twist, to assess sideways pressure on limbs; and
(e) Position of the butt of the tree in relation to the ground, to assess tension in
the tree stem.
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