Kammala wannan jumla: Kwaskwarimar ta Uku, da aka zartar a 1972, ta ba Ireland damar shiga cikin Tarayyar Turai. A shekara ta 1986, gwamnati ta sanya hannu kan Dokar Turai ta Duniya (SEA). Koyaya, Raymond Crotty ya nemi umarnin hana amincewa da jihar. A cikin "Crotty v. An Taoiseach" (1987), Kotun Koli ta yanke hukuncin cewa ƙarin canja wurin iko daga jihar zuwa ga cibiyoyin Turai a cikin SEA ba "da ake buƙata ta hanyar wajibai na zama memba na Communities" kamar yadda aka tanada a cikin Kwaskwarima na Uku. Sakamakon haka, Tsarin Mulki ya buƙaci ƙarin gyare-gyare, kafin a amince da SEA. An yi wannan ne a kuri'ar raba gardama a shekara ta 1987. A kan wannan tushe, an sake gudanar da kuri'un raba gardama kan Yarjejeniyar Turai kan Yarjejeniyar Maastricht (a 1992), kan Yarjejeniyar Amsterdam (a 1998), kan Yarjejeniyar Nice (a 2001 da 2002), da kan Yarjejeniyar Lisbon (a 2008 da 2009).
a shekarar 2009). An kuma gudanar da kuri'un raba gardama don ba da izinin jihar ta zama mai ɗaure da Yarjejeniyar Jumma'a mai girma a 1998, da kuma tabbatar da Kotun Laifuka ta Duniya a 2001 da kuma Yarjejeniyar Tsaro a 2012.