A South Carolina Affidavit of Mailing is a legal document that identifies an item that was mailed in the state of South Carolina. It is used to show proof of mailing an item in a court of law. The affidavit is signed and notarized by an authorized individual who has knowledge of the mailing. There are two types of South Carolina Affidavit of Mailing. The first type is a Blanket Affidavit of Mailing, which is used to certify the mailing of multiple documents. The second type is an Affidavit of Mailing of a Single Document, which is used to certify the mailing of a single document. The affidavit must include the date of mailing, the address of the recipient, a description of the item that was sent, and the name of the sender.