In spite of some common rules the European elections are typified by a certain number of rules which are specific to each country.
To be able to vote in the European elections the criteria of residency has to be respected first and foremost and this rule varies from country to country. It means that the citizen has to be registered on the population records or on the electoral roll; that his main domicile is in the country where he/she votes and that he/she has been living there for a minimum amount of time or on a permanent basis.Some Member States only grant European election voting rights to their citizens who live in a Union State, whilst others grant all of their citizens the right to vote where ever they live in the world.
The standardisation of the electoral procedure features in article 138 of the 1957 Rome Treaty but has never been accepted by the European Council (a majority vote by the Parliament and a unanimous vote by the Council are vital for the adoption of a uniform mode of voting). Only one feature is common to the European elections: since 1999, they take place according to a proportional list system.However, the day of the vote, the number of constituencies, the threshold of access to list representation and the vote distribution system differ from one Member State to another. The table and notes below summarise the main electoral rules in force amongst the 27 countries taking part in the elections from 6th to 9th of May 2024.