Polling at the referendum took place on Friday, 22nd May, 1998 between the hours of 8 a.m. and 10 p.m. A referendum on the Treaty of Amsterdam took place on the same day. The following prescribed statement for the information of voters on the subject matter of the referendum was included in a leaflet sent to each elector:
The total number of votes recorded in favour of the proposal was 1,442,583 and the total number of votes recorded against the proposal was 85,748. As the proposal was duly approved by the people, the Bill was signed by the President on 3rd June, 1998 and promulgated as a law.
Result Summary
| Electorate: | 2,747,088 |
| Total Poll: | 1,545,395 |
| Percentage Poll: | 56.26% |
| Votes in favour of the proposal: | 1,442,583 |
| Votes against the proposal: | 85,748 |
| Invalid Ballot Papers: | 17,064 |