Permanent representative to the United Nations Permanent representative to the United Nations A permanent representative (sometimes called a "UN ambassador") is the head of a diplomatic mission to the United Nations. Of these, the most high-profile UN permanent representatives are those assigned to headquarters in New York City. However, member states also appoint permanent representatives to the other UN offices in Geneva, Vienna, and Nairobi. Many countries, including the United States, call their UN permanent representative "UN ambassadors". Although a permanent representative holds the equivalent diplomatic rank of an ambassador (or chief of mission or high commissioner), he or she is accredited to an international organisation,
Headquarters of the United Nations as well as a deck over FDR Drive on the headquarters' eastern side. To fit in with the accelerated schedule of construction, the steel would have to be delivered by September. The project also included a four-lane, $2.28 million vehicular tunnel under First Avenue so that traffic could bypass the headquarters when the UN was in session. The tunnel started construction on August 1, 1949. The tunnel involved two years of planning due to its complexity. Property inside Tudor City, just west of the headquarters, was also acquired so that two streets near the UN headquarters could be widened. The