District of Columbia Return of Service On Petitioner is a form used in the D.C. Superior Court to document that a legal document, called a petition, has been served upon a respondent. The form must be completed and filed with the court within a certain time period after service has been completed. It includes information about the petitioner, the respondent, the date the petition was served, the manner of service, and the name of the person who completed the service. It also includes an acknowledgment by the respondent that they have been served with the petition. There are two types of District of Columbia Return of Service On Petitioner: in person (by a process server) and by mail (by registered or certified mail).