Manual tasks’ is physical work activity. In this national standard it is defined as any activity requiring a person to use any part of their musculoskeletal system in performing their work.This National Standard for Manual Tasks sets out the principles for the effective management of hazardous manual tasks to avert musculoskeletal disorders arising from manual tasks in the workplace. It was released in a draft form for public comment, in line with a decision by the ASCC on 1 March 2005.