Mental Demands: Comprehend and follow instructions, perform assigned tasks, maintain an appropriate work pace, perform complex or varied tasks, relate to others, influence people, make decisions, direct, control, plan, interact with public or coworkers in written form, communicate orally, etc. Environmental demands: Extreme cold or heat, noise, vibration, exposure to (dust/ gas/ fumes/steam/chemicals), work outdoors, work at heights, working around moving machinery, walking on uneven ground, PPE required, etc.