All Berlin residents who are 16 years and older, hold EU citizenship, have lived there for three months and were registered six weeks before the election[1] are eligible to vote for the districts' assemblies. In order to be eligible to vote for the parliament of Berlin (Abgeordnetenhaus), one has to be 18 years old and hold German citizenship, too. Only those under disability or in psychiatric wards are excluded. Courts of justice also have the possibility to revoke the right to vote.
Elections are held about every five years. The Senate of Berlin decides the exact date of the election for the Abgeordnetenhaus, which is usually the same as for the assemblies of the twelve districts of Berlin. The last state election was held on Sunday, 18 September 2016.