Three referendums were held simultaneously in Ireland on 7 June 2001, each on a proposed amendment to the Constitution of Ireland. Two of the measures were approved, while the third was rejected. The two successful amendments concerned the death penalty and the International Criminal Court.
The failed amendment concerned the Treaty of Nice. It has also been intended to submit a fourth proposal to a referendum, concerning the investigation of judges, but this amendment was not ultimately passed by the Oireachtas (parliament) and so was never put to a vote.
The Twenty-first Amendment introduced a constitutional ban on the death penalty and removed all references to capital punishment from the text. The proposal was approved.
| Choice | Votes | % |
|---|---|---|
 Yes | 610,455 | 62.08 |
| No | 372,950 | 37.92 |
| Valid votes | 983,405 | 98.55 |
| Invalid or blank votes | 14,480 | 1.45 |
| Total votes | 997,885 | 100.00 |
| Registered voters/turnout | 2,867,960 | 34.79 |
The Twenty-second Amendment Bill proposed to establish a body for the investigation of judges and to amend the procedure for the removal of judges. It was not passed by the houses of the Oireachtas and therefore was not submitted to a referendum. It is a "missing amendment" of the Constitution of Ireland.
The Twenty-third Amendment permitted the state to ratify the Rome Statute of the International Criminal Court. The proposal was approved.
| Choice | Votes | % |
|---|---|---|
| Yes | 629,234 | 64.22 |
| No | 350,512 | 35.78 |
| Valid votes | 979,746 | 98.21 |
| Invalid or blank votes | 17,819 | 1.79 |
| Total votes | 997,565 | 100.00 |
| Registered voters/turnout | 2,867,960 | 34.78 |
The Twenty-fourth Amendment Bill proposed that the state ratify the Nice Treaty of the European Union. The proposal was rejected.
| Choice | Votes | % |
|---|---|---|
 No | 529,478 | 53.87 |
| Yes | 453,461 | 46.13 |
| Valid votes | 982,939 | 98.51 |
| Invalid or blank votes | 14,887 | 1.49 |
| Total votes | 997,826 | 100.00 |
| Registered voters/turnout | 2,867,960 | 34.79 |
A popular initiative is a form of direct democracy by which a petition meeting certain hurdles can force a legal procedure on a proposition. The hurdles the petition has to meet vary between countries, typically signatures by a certain number of registered voters.
The Constitution of the Irish Free State was adopted by Act of Dáil Éireann sitting as a constituent assembly on 25 October 1922. In accordance with Article 83 of the Constitution, the Irish Free State Constitution Act 1922 of the British Parliament, which came into effect upon receiving the royal assent on 5 December 1922, provided that the Constitution would come into effect upon the issue of a Royal Proclamation, which was done on 6 December 1922. In 1937 the Constitution of the Irish Free State was replaced by the modern Constitution of Ireland following a referendum.
A constitutional amendment is a modification of the constitution of a polity, organization or other type of entity. Amendments are often interwoven into the relevant sections of an existing constitution, directly altering the text. Conversely, they can be appended to the constitution as supplemental additions, thus changing the frame of government without altering the existing text of the document.
The Third Amendment of the Constitution Act 1972 is an amendment to the Constitution of Ireland that permitted the State to join the European Communities, which would later become the European Union, and provided that European Community law would take precedence over the constitution. It was approved by referendum on 10 May 1972, and signed into law by the President of Ireland Éamon de Valera on 8 June of the same year.
The Fourth Amendment of the Constitution Act 1972 is an amendment to the Constitution of Ireland which lowered the voting age for all national elections and referendums in the state from twenty-one to eighteen years of age. It was approved by referendum on 7 December 1972 and signed into law on 5 January 1973.
The Sixth Amendment of the Constitution (Adoption) Act 1979 is an amendment to the Constitution of Ireland ensured that certain adoption orders would not be found to be unconstitutional because they had not been made by a court. It was approved by referendum on 5 July 1979 and signed into law on 3 August 1979.
The Tenth Amendment of the Constitution Act 1987 is an amendment to the Constitution of Ireland that permitted the state to ratify the Single European Act. It was approved by referendum on 26 May 1987 and signed into law on 22 June of the same year.
The Eighteenth Amendment of the Constitution Act 1998 is an amendment of the Constitution of Ireland which permitted the state to ratify the Treaty of Amsterdam. It was approved by referendum on 22 May 1998 and signed into law on the 3 June of the same year. The referendum was held on the same day as the referendum on Nineteenth Amendment, which related to approval of the Good Friday Agreement.
The Twenty-first Amendment of the Constitution Act 2001 is an amendment of the Constitution of Ireland which introduced a constitutional ban on the death penalty and removed all references to capital punishment from the text. It was approved by referendum on 7 June 2001 and signed into law on 27 March 2002. The referendum was held on the same day as referendums on the ratification of the Rome Statute of the International Criminal Court, which was also approved, and on the ratification of the Nice Treaty, which was rejected.
The Twenty-third Amendment of the Constitution Act 2001 of the Constitution of Ireland is an amendment that permitted the state to become a party to the International Criminal Court (ICC). It was approved by referendum on 7 June 2001 and signed into law on the 27 March 2002. The referendum was held on the same day as referendums on the prohibition of the death penalty, which was also approved, and on the ratification of the Nice Treaty, which was rejected.
The Twenty-sixth Amendment of the Constitution Act 2002 is an amendment of the Constitution of Ireland which permitted the state to ratify the Treaty of Nice. It was approved by referendum on 19 October 2002 and signed into law on 7 November of the same year. The amendment followed a previous failed attempt to approve the Nice Treaty which was rejected in the first Nice referendum held in 2001.
Amendments to the Constitution of Ireland are only possible by way of referendum. A proposal to amend the Constitution of Ireland must first be passed as a bill by both Houses of the Oireachtas (parliament), then submitted to a referendum, and finally signed into law by the President of Ireland. Since the constitution entered into force on 29 December 1937, there have been 32 amendments to the constitution.
An ordinary referendum in Ireland is a referendum on a bill other than a bill to amend the Constitution. The Constitution prescribes the process in Articles 27 and 47. Whereas a constitutional referendum is mandatory for a constitutional amendment bill, an ordinary referendum occurs only if the bill "contains a proposal of such national importance that the will of the people thereon ought to be ascertained". This is decided at the discretion of the President, after a petition by Oireachtas members including a majority of Senators. No such petition has ever been presented, and thus no ordinary referendum has ever been held.
The Twenty-fourth Amendment of the Constitution Bill 2001 was a proposed amendment to the Constitution of Ireland to allow the state to ratify the Treaty of Nice of the European Union. The proposal was rejected in a referendum held in June 2001, sometimes referred to as the first Nice referendum. The referendum was held on the same day as referendums on the prohibition of the death penalty and on the ratification of the Rome Statute of the International Criminal Court, both of which were approved.
The Twenty-fifth Amendment of the Constitution Bill 2001 was a proposed amendment to the Constitution of Ireland to tighten the constitutional ban on abortion. It would have removed the threat of suicide as a grounds for legal abortion in the state, as well as introducing new penalties for anyone performing an abortion, by giving constitutional status to legislation proposed to be enacted after the amendment. It was narrowly rejected in a referendum held on 6 March 2002, with 50.4% against.
The Twenty-eighth Amendment of the Constitution Act 2009 is an amendment of the Constitution of Ireland which permitted the state to ratify the Treaty of Lisbon of the European Union. It was approved by referendum on 2 October 2009.
The ratification of the Treaty of Lisbon was officially completed by all member states of the European Union on 13 November 2009 when the Czech Republic deposited its instrument of ratification with the Italian government. The Lisbon Treaty came into force on the first day of the month following the deposition of the last instrument of ratification with the government of Italy, which was 1 December 2009.
Two constitutional referendums were held simultaneously in Ireland on 27 October 2011, each on a proposed amendment of the Constitution of Ireland. The proposed amendments are on judicial salaries pay cuts, and to provide additional powers to Oireachtas committees.
The Twenty-ninth Amendment of the Constitution Act 2011 is an amendment to the Constitution of Ireland which relaxes the previous prohibition on the reduction of the salaries of Irish judges. It was approved by a referendum on 27 October 2011 signed into law on 17 November 2011. It was held on the same day as a referendum on Oireachtas Inquiries, which was rejected, and the presidential election at which Michael D. Higgins was elected.
The Thirtieth Amendment of the Constitution Bill 2011 was a proposed amendment to the Constitution of Ireland to provide for the Houses of the Oireachtas to conduct full inquiries. The bill was passed by both houses of the Oireachtas, but rejected at a referendum held on 27 October 2011.
