Workers are subject to the following environments: inside areas with uncontrolled temperatures; outside areas with extreme heat, cold and weather conditions; loud noise; various physical hazards; exposure to various harmful materials/chemicals/dusts/poor ventilation; small/narrow workspaces which could cause claustrophobia; exposure to potential infectious diseases/materials. Visual Acuity: Good visual acuity is required including but not limited to various distances: near detail work and far; various light conditions: night or in dim light, in daylight or bright light, under glare or poor contrast; to operate motor vehicles or heavy equipment, distinguishing colors, shapes, patterns depth perception and peripheral vision.