Consumer Protection Act Article 54
Where a mass of parties injured out of the same consumer relationship, the court may announce by public a notice, after obtaining the consent of the representative(s) selected by other injured parties in accordance with Article 41 of the Code of Civil Procedure, whereby other injured parties may file a demand for judgment in the same litigation procedure within a time limit, containing the facts, evidences and the declaration of claims in writing. Persons making such filing shall be deemed to have made the selection in accordance with Article 41 of the Code of Civil Procedure.Copies of the filing in writing concerning the same litigation set forth in the preceding paragraph shall be sent to both the plaintiffs and the defendants.The time limit referred to in the first paragraph shall be not less than 10 days. The public notice shall be attached to the bulletin board of the courthouse and shall be published in newspapers with expenses to be paid for by the National Treasury.