The Constitution can only be amended if a majority of eligible voters have voted for the proposed amendment in a constitutional referendum. A second type of referendum can be held to vote on a Bill of national importance.
This document outlines how a constitutional referendum works in Ireland.
An ordinary referendum is one that does not relate to amending the Constitution. Find out why an ordinary referendum would be held.
In general, whenever a referendum is to be held, a Referendum Commission is set up to give the public accurate and unbiased information about it.
Voting in a referendum
Who can vote in a referendum in Ireland, where do you cast your vote and how do you cast your vote?
Referendum result in Ireland
Information on how the results of a referendum are determined.