All Irish citizens may vote in presidential elections if they have the right to vote in elections to Dáil Éireann (the lower house of the Oireachtas or parliament). The voting age is eighteen. The Dáil electoral register is based on residency within a geographical Dáil constituency, so that those living abroad may not vote, except diplomats and military posted overseas. Resident UK citizens may vote in Dáil elections but not presidential elections. A proposed constitutional amendment would give non-resident citizens a vote in presidential elections.