In Denmark, the electoral rolls are kept by the municipalities, even for citizens resident abroad. In Hungary too, it is the local electoral offices that draw up the consular electoral roll and forward the details to the National Electoral Office. In Liechtenstein, the citizens concerned remain on the roll on which they were entered before they left the country. In Luxembourg, the College of Mayors and Aldermen of the locality in question keeps and supervises the electoral roll for citizens resident abroad. Responsibility for compiling the consular electoral rolls lies with the local electoral office or the department in charge of elections in the case of Serbia, Switzerland and Ukraine.