Frequent (34-66% of workday): outside work, exposure to noise and vibrations, working from heights above 12 feet from a ladder, climbing, ascending/descending ladders while carrying objects, hearing, use of near and far vision, bending/twisting, lifting and carrying objects weighing 11-20 pounds, pushing/pulling objects weighing 11-20 pounds, and medium handling. Occasional (1-33% of workday): chemical and burn hazards, exposure to dust and physically confined workspaces, walking, sitting, kneeling, stooping, crouching, balancing, reaching, feeling, talking, lifting, and carrying objects weighing 21-50 pounds, and pushing/pulling objects weighing 41-80 pounds on wheels, and high handling and fingering.