The Post Adjustment system was designed to equalize purchasing power of United Nations salaries for professionals and higher categories, taking into account the cost of living differences between the base city of the system (New York) and other duty stations. The system aims at ensuring that, no matter where United Nations common system staff work at some 180 locations worldwide, their take-home-pay has a purchasing power equivalent to that at the base of the system. The Post Adjustment System is available at: http://icsc.un.org/secretariat/cold.asp?include=par