EU member states' positions on referendum:
No Referendum
Austria - No referendum planned.
Baltics - Latvia, Lithuania and Estonia. None are likely to hold referendums.
Cyprus - It will not hold a referendum; parliament will decide.
Finland - The government says no referendum is needed.
Germany - The constitution must be ratified by parliament. A referendum is not on the agenda.
Greece - The constitution will be ratified by parliament and there are no plans to hold a referendum.
Hungary - The government has no plans for a referendum.
Italy - No popular vote is expected on the constitution.
Malta - All international treaties must go through parliament and no referendum will be held.
Slovakia - There is no legislative need for a referendum and parliament will decide.
Slovenia - No requirement for a referendum, but the new constitution needs government and parliamentary approval.
Sweden - The parliament needs a simple majority to ratify the constitution. No referendum will be held.
Referendum
Belgium - Belgian Prime Minister Guy Verhofstadt said in early June he favoured holding a referendum and proposes to launch a consultative referendum within 50 days of the approval of the EU constitution.
Czech Republic - Jan Kohout said early in June that the Czech Republic is likely to hold a referendum. The ballot's outcome is far from certain.
Denmark - Will hold a referendum.
Ireland - Has a strong tradition of polling citizens on European issues and under its own constitution must hold a referendum.
Luxembourg - Plans a referendum.
Portugal - Portuguese Prime Minister Jose Manuel Durao Barroso says a referendum will be held at the start of 2005.
Spain - Prime Minister Jose Luis Rodriguez Zapatero tells parliament his intention is to hold a referendum.
United Kingdom - Britain's Tony Blair may not hold a promised referendum on the constitution until 2006.
Undecided
France - President Chirac's statement welcoming the adoption of the EU constitution failed to say whether he would hold a referendum.
Netherlands - A majority of the Dutch lower house has voted in favour of an "advisory" referendum. The outcome of such a vote, the first in the Netherlands, would be a guide to parliament and the government in reaching a decision, but not binding.
Poland - Poland has yet to formally decide whether to hold a popular vote. Both the ruling minority left and the opposition want a referendum and differ only on its timing.