Nebraska Appendix I — SamplFormma— - Certificate of Service PDF is a document that is issued by the Nebraska court system to certify that legal papers were served on a party. This document is necessary for the court to establish that the party was properly served with the summons and other legal documents. There are two types of Nebraska Appendix I — SamplFormma— - Certificate of Service PDF: traditional service and substituted service. Traditional service is when the papers are physically served by a process server or a sheriff to the party. Substituted service is when the documents are served by mail, publication, or another method as permitted by law. The Nebraska Appendix I — SamplFormma— - Certificate of Service PDF includes the date of service, the name and address of the party being served, the name and address of the person or entity who served the papers, and a signed affidavit of service.