The United Nations Appeals Tribunal (UNAT), which replaces the former United Nations Administrative Tribunal, is an appellate court, of the two-tier formal system of administration of justice in the UN.[1] It was established by the UN General Assembly in December 2008 to review appeals against judgments rendered by the United Nations Dispute Tribunal (UNDT).[2] UNAT, including its registry, is based in New York, and holds sessions in New York City, Geneva and Nairobi, as required by caseload. It held its first session in Geneva in 2010.[1]: para(S) 39–45 [3] The UNAT is a component of the UN's Internal Justice System, and is listed as an office, along with UNDT and the Office of the United Nations Ombudsman, under the UN secretariat. The UNAT like the UNDT, is dependent for its administrative, office, staffing, and travel needs including that of the judges, on the UN secretariat.[4]
As adopted by the General Assembly in resolution 63/253 on 24 December 2008 and amended by resolution 66/237 adopted on 24 December 2011 and resolution 69/203 adopted on 18 December 2014