Iowa Code Title XV. Judicial Branch and Judicial Procedures [Chs. 595-686] § 625A.13. Arguments in re constitutional test

If the action challenges the legality, validity or constitutionality of a proposed constitutional amendment, the appellant shall file a written argument with the supreme court within ten days after the filing of the abstract and appellee shall file an argument within ten days thereafter, and appellant shall then file a reply within three days. The cause shall then be submitted to the supreme court in regular or special en banc session as soon thereafter as the chief justice may order.