Requirement includes a wide variety of non-merchantable vegetation management activities for the purpose of fuels reduction, prescribed burn unit preparation, stand improvement, or unit rehabilitation. Activities could include, but are not limited to, tree thinning, slashing, girdling, pruning, weed and release, release of browse species, slash treatment, hand piling, fuel break construction, Fireline construction, residual tree protection, duff mound removal, unit preparation work, rehabilitation, chipping and related services. Unit boundary/special protection area designation and/or traversing for or within these units may also be included in the activity.