Objectives. In this course, we will cover:DefinitionsPersonal protective equipment (PPE)HazardsChainsaw safetyTraining. 29 CFR 1910.266. Definitions. Backcut (felling cut) Final cut in a felling operationBuckingSawing felled trees into sections called logsDanger treeStanding tree that presents a hazard to employees due to deterioration or physical damage to the root system, trunk, stem or limbs, and the direction and lean of the tree.