Are you talking about using a chainsaw for trimming a few limbs or to drop whole trees? Our company has no rule against one man with glasses, hardhat, and chaps trimming anything they want. We will even let the serviceman at his choice cut a tree top off of a dead and grounded line, however he can call for help to do so. If a whole tree is uprooted or leaning on a line we get at least two or more people there. Quite often where whole trees are involved we simply call the Right-of-way contractor to get the tree after we ground the line. Whoever runs the chainsaw though will have to have hardhat, glasses and chaps. We store the chaps with the saws on the trucks. We also do a safety review of chainsaw techniques about every two years.