This unique study breaks new ground in engaging the study of Northern Ireland politics directly with broader debates about European integration and European governance. The text offers the most comprehensive coverage to date of the institutional development of Northern Ireland following the UK government’s devolution programme and Northern Ireland’s development as an autonomous policy actor in Europe. This study marshals evidence from Northern Ireland’s relationship with the European Union (EU) during the contemporary era of devolved power. The text argues that in Northern Ireland a series of national and regional constraints, complexities and divisions limit regional autonomy. These original insights question the synergy between devolution and the EU and query the existence of new forms of ‘governance’. This is a contribution of both immense substance and considerable importance and should be essential reading for those with an interest in Northern Ireland and EU politics.