Virginia Waiver of Service of Summons-AO399(Fillable Form) is a legal document used in Virginia civil court proceedings. It is a document which can be used to waive formal service of summons, thus allowing a plaintiff to proceed with the case without the defendant having to formally appear in court. The form is used by the defendant to indicate that they have received notice of the lawsuit and are voluntarily waiving their right to be formally served with a summons. The form can be filed with the court or sent directly to the plaintiff. The form includes spaces to enter the names of the parties involved in the case, as well as the details of the case, including the case number. There are two types of Virginia Waiver of Service of Summons-AO399(Fillable Form): one for adults, and one for minors. Both forms must be signed by the defendant in order to be valid.