Polling at the referendum took place on Thursday, 18 June 1992 between the hours of 9:00am and 10:00pm.
The subject matter of the referendum was described as follows on the official polling card circulated to each elector:
The Eleventh Amendment of the Constitution Bill, 1992, relating to the amendment of Article 29 of the Constitution proposes to repeal the third sentence in subsection 3° of section 4 thereof and to insert the subsections here following into the said section 4:
4° The State may ratify the Treaty on European Union signed at Maastricht on the 7th day of February 1992, and may become a member of that Union.
5° No provision of this Constitution invalidates laws enacted, acts done or measures adopted by the State which are necessitated by the obligations of membership of the European Union or of the Communities, or prevents laws enacted, acts done or measures adopted by the European Union or by the Communities or by institutions thereof, or by bodies competent under the Treaties establishing the Communities, from having the force of law in the State.
6° The State may ratify the Agreement relating to Community Patents drawn up between the Member States of the Communities and done at Luxembourg on the 15th day of December 1989.
(The statement was prescribed by the Referendum (Amendment) Act, 1992)
The total number of votes recorded in favour of the proposal was 1,001,076 and the total number of votes recorded against the proposal was 448,655. As the proposal was duly approved by the people, the Bill was signed by the President on 16 July 1992 and promulgated as a law.