The National University of Ireland (NUI) is a federal university comprising the largest element of the Irish university system at the present time. The continuing mission for NUI in modern Ireland is to provide a supportive framework for its confederate institutions, to promote the objects of the University, thus contributing to educational, cultural, social and economic advancement. The National University of Ireland currently comprises four Constituent Universities, four Recognised Colleges and three Colleges of a Constituent University. Each institution within the NUI federation has its own Governing Authority; the overall Governing Authority of the University is the NUI Senate and its Chief is the Chancellor.
The Irish Universities Act, 1908 established two new Universities - the National University of Ireland and the Queen's University of Belfast and dissolved the Royal University on 31 October 1909. Under this Act, the National University became a federal University with its seat in Dublin and with three Constituent Colleges established by Charter: University College, Dublin; University College, Cork; and University College, Galway. The Queen's Colleges in Cork and Galway were given an entirely new status and title. The Jesuit University College, Dublin, was given a new constitution and was merged with the Catholic University Medical School. The Act empowered the University Senate to recognise courses of study in other institutions for the purpose of degrees, and the following institutions were granted the status of Recognised College.