Washington Return of Service is a legal document that is used in Washington state to officially notify a defendant of a pending lawsuit. The document, also known as a summons, is issued by a court clerk and must be served upon a defendant within a certain period of time. There are two types of Washington Return of Service: personal service and service by mail. Personal service requires that a copy of the summons be delivered to the defendant in person, while service by mail requires the summons to be delivered to the defendant via mail. In both cases, the person who serves the summons must complete a Washington Return of Service form and submit it to the court clerk, who will then enter it into the court's record. The Washington Return of Service form includes the date and time the summons was served, the name of the individual who served it, and any other relevant information.