The Iowa Waiver of Service of Summons is a legal document that allows a party in a lawsuit to waive their right to be notified of a legal proceeding and to accept service of a summons. This waiver can be used in both civil and criminal cases. The waiver can be completed by the defendant, the plaintiff, or both parties to the lawsuit. There are two types of Iowa Waiver of Service of Summons: Waiver of Service of Summons by Mail and Waiver of Service of Summons by Publication. The Waiver of Service of Summons by Mail is used when the defendant is known and can be served with the summons. The Waiver of Service of Summons by Publication is used when the defendant is unknown or cannot be served with the summons. This waiver allows the summons to be published in a newspaper or other publication in the county where the lawsuit is being filed.