The Supreme Court sat last week to hear a case in Irish. While the state has battled for the Irish language in Europe it's not as keen to give it equality when it comes to the hundreds of statutory instruments that are published each year in English only.
Article eight of the constitution clearly says that Irish is the first language of the state. The government doesn't believe this means the courts can tell them when and how to translate laws though. The judgement on this case will take a few months.