Tasks involve the regular and sustained performance of moderately physically demanding work, typically involving some combination of climbing and balancing, stooping, kneeling, crouching and crawling, and that involves the lifting, carrying, pushing and pulling of moderately heavy objects and materials (20-50 pounds) and occasionally heavier objects and materials (up to 100 pounds). Operates all equipment and tools in a safe, prudent and efficient manner, including the use of truck, bucket truck, aerial lift, wood chipper, chain saws, hand saws, stump grinders, loaders, safety harness, climbing saddle, rigging ropes and tackle.