Must be able to physically perform the basic life operational support functions of climbing, balancing, stooping, kneeling, crouching, crawling, reaching, standing, walking, pushing, pulling, lifting, fingering, grasping, feeling, talking, hearing and repetitive motions. Worker is subject to hazards including a variety of physical conditions such as proximity to moving mechanical parts, electrical current, working on scaffolding and high places, exposure to high heat or exposure to chemicals.