The Humanitarian Coordinator (HC) is the senior-most official of the United Nations Office for the Coordination of Humanitarian Affairs (OCHA) in a country experiencing a humanitarian emergency. Humanitarian coordinators are appointed by the U.N. Emergency Relief Coordinator. The HC is accountable to the Emergency Relief Coordinator. The Humanitarian Coordinator is responsible for assessing whether or not an international response to crisis is warranted and for ensuring the humanitarian response efforts, if needed, are well organized.