Wisconsin Brief Cover (includes: Certification of Mailing (or Third-Party Commercial Delivery), form and length Certification, Appendix Certification) is an official document used by the Wisconsin Supreme Court to certify the filing of a brief or other documents with the court. It is a document that must be signed by the attorney filing the brief and includes information such as the date of filing, the title of the case, the name of the attorney filing the brief, the name of the court, and the number of pages filed. The Certification of Mailing (or Third-Party Commercial Delivery) verifies that the brief was sent to the court via mail or through a third-party commercial delivery service. The form and length Certification certifies that the brief meets the court's requirements for form and length. The Appendix Certification certifies that the appendix meets the court's requirements for form and length. Different types of Wisconsin Brief Cover (includes: Certification of Mailing (or Third-Party Commercial Delivery), form and length Certification, Appendix Certification) include: Certification of Mailing (or Third-Party Commercial Delivery), Form and Length Certification, and Appendix Certification.