The states parties to the Rome Statute of the International Criminal Court are those sovereign states that have ratified, or have otherwise become party to, the Rome Statute of the International Criminal Court. The Rome Statute is the treaty that established the International Criminal Court, an international court that has jurisdiction over certain international crimes, including genocide, crimes against humanity, and war crimes that are committed by nationals of states parties or within the territory of states parties. States parties are legally obligated to co-operate with the Court when it requires, such as in arresting and transferring indicted persons or providing access to evidence and witnesses. States parties are entitled to participate and vote in proceedings of the Assembly of States Parties, which is the Court's governing body. Such proceedings include the election of such officials as judges and the Prosecutor, the approval of the Court's budget, and the adoption of amendments to the Rome Statute.