Federal popular initiative

The federal popular initiative (German: Eidgenössische Volksinitiative, French: Initiative populaire fédérale, Italian: Iniziativa popolare federale, Romansh: Iniziativa federala dal pievel), is a Swiss civic right enabling 100,000 citizens with voting rights to propose a total or partial amendment to the Federal Constitution and submit it to a popular vote. The citizens behind the initiative, grouped together in an initiative committee, have 18 months in which to gather the approval of 100,000 citizens.

Source: Wikipedia — Federal popular initiative (CC BY-SA 4.0)