Issues in relation to which referendums are mandatory at the national level

Constitution of Ireland

(Adopted on December 1937, last amended June 2004)

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Article 46(2). ( Mandatory referendum)

Every proposal for an amendment of this Constitution shall be initiated in Dáil Éireann as a Bill, and shall upon having been passed or deemed to have been passed by both Houses of the Oireachtas, be submitted by Referendum to the decision of the people in accordance with the law for the time being in force relating to the Referendum. 

The Constitution of Ireland (Bunreacht na hÉireann) was approved by the people at a plebiscite held on 1st July 1937 and came into operation on 29th December 1937. During a transitional period to June 1941 the Constitution could be amended by ordinary legislation and two Constitution Amendment Acts were enacted during this period. Since the expiry of the transitional period, it has been possible to amend the Constitution only with the approval of the people at a referendum.