Sitting Not Required Repetitive Hand Motion (such as typing) Often Hearing, Listening, Talking Often Standing Not Required Walking Not Required Running Not Required Bending, Stooping, Kneeling, squatting, Crouching, Crawling Not Required Climbing stairs Not Required Climbing ladders Not Required Reaching overhead Not Required Pulling, pushing Not Required Shoveling Not Required Lifting - up to 20 pounds Not Required Lifting - up to 50 pounds Not Required Lifting - over 50 pounds Not Required. It has residential campuses in the Bronx and Manhattan, a campus in West Harrison, N.Y., the Louis Calder Center Biological Field Station in Armonk, N.Y., and the London Centre in the United Kingdom.