There are five types of elections in Slovakia: municipal elections, regional elections, parliamentary elections, presidential elections and elections to the European Parliament. All four types of elections are normally held after fixed periods, although early elections can occur in certain situations. Elections are conventionally scheduled for a Saturday - the polls normally open at 7:00 in the morning and close at 22:00 in the evening. Citizens aged 18 years or older are eligible to vote. Those serving prison sentences for particularly serious crimes, as well as those deprived of legal capacity (either wholly or in part), including persons with mental disabilities, are denied the right to vote. Voter registration is passive and decentralized with the voter register maintained by municipalities based on the permanent residence register. Voter lists are updated continuously based on municipal records and input provided by state institutions or other municipalities. Voters may verify their data in voter lists, and, if necessary, request correction until the day before election day. On election day, a voter can be added to a voter list upon presenting an identity card with proof of residency. Some 4.4 million voters are registered and valid to vote in the elections. Voters are only able to vote from abroad during the Parliamentary Elections in Slovakia. Overall information on the electoral system and elections in Slovakia Municipal elections 2,904 municipalities make up Slovakia each with a mayor and municipal councilors (20,646). Citizens need to reach the age of 18 at the day of elections and have a permanent residency in their municipalities in order to be able to vote in the municipal elections. After receiving the ballot paper from the electoral commission, the voter is free to select any desired number of candidates - the maximum being the number of the seats in the electoral district (or in the Town council in case of a village). As well voters can vote for a mayor. Elections are held every four years. The next election will be held on 29 October 2022. Regional elections Slovakia comprises eight self-governing regions. Citizens need to reach the age of 18 at the day of elections and have a permanent residency in their municipalities in order to be able to vote in the regional elections. After receiving the ballot paper from the electoral commission, the voter is free to select any desired number of candidates - the maximum being the number