Article 13

Member States shall exchange the information required for the implementation of Article 4. To that end, the Member State of residence shall, on the basis of the formal declaration referred to in Articles 9 and 10, supply the home Member State, sufficiently in advance of polling day, with information on the latter State's nationals entered on electroal rolls or standing as candidates. The home Member State shall, in accordance with its national legislation, take appropriate measures to ensure that its nationals do not vote more than once or stand as candidates in more than one Member State.