Each state that has ratified or acceded to the Rome Statute is a member of the Assembly of States Parties (ASP). The Assembly of States Parties is the management oversight and legislative body of the ICC. It meets at least once each year. In addition to member states, civil society observers, organized through the Coalition for the ICC, play a prominent role.
The Assembly of States Parties has a Bureau, consisting of a President, two Vice Presidents and 18 members elected by the Assembly for a three-year term, taking into consideration principles of equitable geographic distribution and adequate representation of the principal legal systems of the world.