There are two types of referendum in Ireland.
When the Government wishes to change something in the Irish Constitution, it must do it by holding a constitutional referendum. The referendum gives the people of Ireland a chance to vote for or against the proposed change or amendment to the Constitution.
When the Government wishes to introduce a law that is of national importance, the Seanad and the Dáil can petition the President to hold a referendum about the law.
If you have a question relating to this topic you can contact the Citizens Information Phone Service on 0761 07 4000 (Monday to Friday, 9am to 9pm) or you can visit your local Citizens Information Centre.