Constitutional Court Procedure Act Article 7

(Appointed and Designated Petitioners) Multiple petitioners may appoint no more than three persons among themselves as the appointed petitioners to lodge the petition on behalf of all the petitioners; provided that the withdrawal of the petition requires the consent of all the petitioners.In a petition where there are more than ten petitioners and none is appointed to act on their behalf according to the preceding Paragraph, the Chamber may order the petitioners to make the pertinent appointment within a specified period of time. If the petitioners fail to do so within the specified period, the Chamber may make the appointment sua sponte.When any of the appointed or designated petitioners has lost her or his capacity to represent due to death or for any other reason, the remaining appointed or designated petitioners may conduct acts of litigation on behalf of all the petitioners. When there exists no other appointed or designated petitioner, the provisions of the preceding Paragraph shall apply mutatis mutandis.After appointed or designated petitioners are in place in a petition pending before the Constitutional Court, the rest of the petitioners shall be withdrawn from the proceeding.