South Carolina Objection and Certification of Interest Rate (Chapter 13) is a document that must be filed in South Carolina bankruptcy court when a debtor is filing a Chapter 13 bankruptcy. The document must include the debtor's objection to the interest rate charged by the creditor, as well as a certification of the debtor's interest rate. The document must be signed by the debtor and the debtor's attorney, and must be submitted with a copy of the creditor's statement of interest rate. The document must be filed within 10 days after the filing of the Chapter 13 petition. There are two types of South Carolina Objection and Certification of Interest Rate (Chapter 13): one for secured creditors and one for unsecured creditors. For secured creditors, the debtor must provide a statement of the interest rate charged, the amount of the debt, and the date on which the debt was incurred. For unsecured creditors, the debtor must provide a statement of the interest rate charged, the amount of the debt, the date on which the debt was incurred, and the creditor's name.