History of the United Nations $8.5 million donation from John D. Rockefeller, Jr. The UN headquarters officially opened on January 9, 1951, although construction was not formally completed until October 9, 1952. Under special agreement with the United States, the UN enjoys certain diplomatic privileges and immunities, but generally the laws of New York City, New York State, and the United States apply. While the principal headquarters of the UN remain in New York City, major agencies base themselves in Geneva, The Hague, Vienna, Nairobi and elsewhere. The basic constitutional makeup of the United Nations has changed little, though vastly increased membership has altered the
United Nations Office for Project Services in sustainable procurement from the Institute. United Nations Office for Project Services The United Nations Office for Project Services (UNOPS) is an operational arm of the United Nations, dedicated to implementing projects for the United Nations System, international financial institutions, governments and other partners around the world. The organization's global headquarters is located on the UN City campus in Copenhagen, Denmark. UNOPS implements more than $1 billion worth of peace and security, humanitarian and development projects for its partners every year, operating in more than 80 countries. Its activities have ranged from managing the construction of schools in Afghanistan, to