Answer: Hi Ed! There are no national tree marking standards.
Forestry organizations have tried for years to set a few guidelines for tree and timber marks. But foresters are an independent breed. Many foresters see their tree marking designs and system as their personal or company imprint. Circles, number of slashes and other quick spirts, including stump marks, usually signifies cutting status and the quality or grade of the tree marked. Boundary line colors often designates land belonging to a particular owner and usually painted over some removed bark (scars) to last longer.