The state of Berlin has three instruments of direct democracy. These enable German citizen residents to directly influence policy, in addition to indirect democracy via elected officials in the House of Representatives. In addition, there are two instruments at the district level. Types The three instruments at the Berlin state level are: Agenda initiative (), a petition which forces the Berlin House of Representatives to debate a certain topic; Referendum (), which requires a , which in turn requires an . Referenda require 25% quoracy; Constitutional referendum (), a referendum that changes the state constitution. In addition to the requirements of regular referenda, it requires a vote in the House of Representatives with a two-thirds majority and at least 50% turnout. This was used once, in 2006. The two district-level instruments of direct democracy are the following: Residents' request, a petition which forces the district assembly () to address a certain topic; Citizens' decision (), which requires the collection of signature of at least 3% of eligible voters (citizens' initiative, ), see . Past initiatives Referenda Legend: Percentages indicate the share of 'yes' voters in the referenda. Colours of the district numbers: former West Berlin, former East Berlin, contains former East and West territories See also Referendums in Germany External links Berlin in the Navigator to Direct Democracy References German constitutional law