The Florida Certificate of Mailing is a document issued by the United States Postal Service (USPS) that serves as official proof of mailing. This document is used to provide proof of mailing and to establish the date of mailing. The Florida Certificate of Mailing is available in two different formats: the Official Certificate of Mailing and the Certificate of Mailing (Listed). The Official Certificate of Mailing is a single-sheet document that includes the USPS acceptance agent's signature, date, and acceptance stamp. The Official Certificate of Mailing is typically used to provide proof of mailing for legal documents, such as court filings and wills. The Certificate of Mailing (Listed) is a multiple-sheet document that includes a list of all items being mailed. This document is typically used to provide proof of mailing for multiple items, such as multiple letters or packages. Both the Official Certificate of Mailing and the Certificate of Mailing (Listed) can be used to provide proof of mailing for documents sent within the state of Florida.