Irish Gaelic was the 21st official language of the EU when it was approved by council regulation on June 2005, but even now it is under derogation. EU institutions are not required to provide full interpretation or translation services into or out of Irish Gaelic, with the exception of co-decisions made by the European Parliament and the European Council. On December 3, 2015, however, new regulation passed by the Council has set a definitive schedule on the gradual reduction of the derogation of the Irish Gaelic language. According to Ethnologue, in 2012, there were around 140,000 native speakers of Irish Gaelic in Ireland, while another million spoke it as a secondary language.
In the Council Regulation (EU, Euratom) 2015/2264, Irish Gaelic will continuously transition into a full official language of the EU. The original derogation of Irish Gaelic was set to be reviewed four years after 2005, and every five years thereafter. This new regulation outlines an actual schedule of gradual reduction spread across five years starting from 2016:

