This unit of competency describes the skills and knowledge required to assess, plan and safely carry out manual felling of trees with advanced characteristics using a chainsaw. This unit covers the felling procedures for advanced trees with a level of complexity that requires significant tree assessment and advanced practical felling skills.Individuals who seek to undertake this unit should have prior experience in operating a chainsaw for the purpose of felling trees in order to ensure their safety while completing this work.Individuals competent in this unit should be able to effectively fell trees of any size, species and condition, including those with significant defects and characteristics that cause excessive felling complexity, that are deemed safe to fell.Trees typical to the scope of this unit may have some of the following characteristics:lean and with weight distribution that adds significant complexity yet can be assessed and adapted to site requirementslarge diameter trees, but not exclusively, that can be safely felled with complex felling techniquesheavy forward leanlean in a direction away from the fall zone or side-leaning to the available fall zonedamage or defect that requires complex felling techniques, including trees with visible lightning damage, burnt out trees and those with fire damaged buttshung up trees that can be removed safelymulti-legged, hollow butts, culls and stagsspecies prone to free splitting and adverse reactions during fellingcomplex multi-stemsterrain, slope and environment that can add significant complexity to the operation.The unit applies to individuals who fell advanced trees as part of arboriculture, forestry, agriculture, conservation and land management, local government, emergency services and other government agency operations. With the exception of minor forest produce, this unit does not apply to commercial harvesting operations.All work must be carried out to comply with workplace procedures, according to state/territory health and safety regulations, legislation and standards that apply to the workplace.No licensing, legislative or certification requirements apply to this unit at the time of publication.