Multiple parties who have common interests may appoint one to five persons from themselves to sue or to be sued on behalf of all parties.
Wherever a claim must be adjudicated jointly for multiple parties who have common interests but such parties fail to appoint in accordance with the provision of the preceding Paragraph, the administrative court may order the parties to make the appointment within a prescribed period; if no appointment is made within the prescribed period, the administrative court may designate the representative ex officio.
After the appointment or designation has been made in a pending litigation in accordance with the provision of the preceding Paragraph, all parties who are not appointed or designated shall withdraw from the proceeding.

The representative parties appointed by the multiple parties who have common interest or designated ex officio by the administrative court may be substituted, increased in number, or cancelled by all parties.
The administrative court, whenever it considers necessary, may order to substitute, increase in number or cancel the representative parties who were designated by itex officio in accordance with the provision of Paragraph 2 of the preceding Article.
In case of substitution, increase in number or cancellation prescribed in the two preceding Paragraphs, any of the representative parties who have been appointed or designated before shall lose their capacity to represent.

When any of the representative parties who have been appointed or designated has lost its capacity to represent due to death or for any other reasons, the remaining appointed or designated representative parties may continue to conduct the litigation for the entire body.

The opposing party shall be notified about the appointment, designation, substitution, increase in number or cancellation of representative parties as provided in Article 29 and Article 30.

The appointed parties, without the consent of the entire body, cannot abandon claims, admit claims, voluntarily dismiss the case or settle the case. However, if the claim does not need to be adjudicated jointly for the multiple parties who have common interests, based on the consent of the appointing parties, the aforesaid restriction does not apply to the voluntary dismissal or settlement of the case in part.

The appointment of representative parties, and the substitution, increase in number or cancellation thereof shall be evidenced in writing.

An incorporated charitable association, if delegated by its multiple members with common interests to conduct litigation for specific legal relation, to the extent permitted by the purposes as prescribed in its bylaws, may sue for public interest.
The provision in the preceding Paragraph shall apply mutatis mutandis to an unincorporated charitable association.
The delegation of powers to conduct litigation as provided in the preceding two Paragraphs shall be evidenced in writing.
The provision of Article 33 shall apply mutatis mutandis to an incorporated association as prescribed in Paragraph 1 and an unincorporated association as prescribed in Paragraph 2.

Articles 48 and 49 of the Code of Civil Procedure shall apply mutatis mutandis to the circumstances prescribed in this Section.