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Treaty of Nice 2001

Referendum on the Twenty-Fourth Amendment of the Constitution Bill 2001 (The Treaty of Nice)

A referendum on a proposal to amend the Irish Constitution to allow Ireland to ratify the Treaty of Nice was held on 7 June 2001.

The Treaty of Nice was agreed by the Heads of State or Government of the EU Member States on 11 December 2000. The main purpose of the Treaty of Nice was to make some changes in the institutions which governed the EU. It also dealt with issues such as common foreign and security policy.

The referendum sought to amend Article 29 of the Irish Constitution. This Article dealt with international relations and included provisions already inserted following the referendums held to ratify membership of the European Communities (1972), the Single European Act (1987), the Treaty on European Union (the Maastricht Treaty) (1992) and the Treaty of Amsterdam (1998).

The proposal was not approved by the people. For further information about the votes cast, see -,1894,en.pdf


Below is a link to three reports of the Referendum Commission which includes its report on the Treaty of Nice Referendum.

Reports of the Referendum Commission.pdf (size 29.6 MB)

Further Information

The Referendum Commission provided the following information to the public:

Your Voice, Your Choice.pdf (size 13.9 MB)

Arguments For & Against The Treaty of Nice.pdf (size 4.2 MB)