Twenty-sixth Amendment of the Constitution Bill 2002 (Treaty of Nice) proposes in insert after subsection 6 of section 4 of article 29
| 7° | The State may ratify the Treaty of Nice amending the Treaty on European Union, the Treaties establishing the European Communities and certain related Acts signed at Nice on the 26th day of February, 2001. |
| 8° | The State may exercise the options or discretions provided by or under articles 1.6, 1.9, 1.11, 1.12, 1.13 and 2.1 of the Treaty referred to in subsection 7° of this section but any such exercise shall be subject to the prior approval of both Houses of the Oireachtas. | |
| 9° | The State shall not adopt a decision taken by the European Council to establish a common defence pursuant to Article 1.2 of the Treaty referred to in subsection 7° of this section where that common defence would include the State. |
Result Summary
| Electorate: | 2,923,918 |
| Total Poll: | 1,446,588 |
| Percentage Poll: | 49.47% |
| Votes in favour of the proposal: | 906,317 |
| Votes against the proposal: | 534,887 |
| Invalid Ballot Papers: | 5,384 |