S.C. Code Ann. § 37-2-305
(1) Every creditor (Section 37-1-301(13)), intending to impose a credit service charge in excess of eighteen percent per annum other than an assignee of a credit obligation, making consumer credit sales (Section 37-2-104) in this State on or before the effective date of this section, and in the case of a creditor not making consumer credit sales in this State on that date, on or before the date the creditor begins to make such credit sales in this State, shall file with the Department of Consumer Affairs and, except as otherwise provided in this section, post in one conspicuous place in every place of business in this State, if any, in which offers to make consumer credit sales are extended, a maximum rate schedule meeting the requirements set forth in subsections (2), (3), and (4) of this section.
(2) The rate schedule required to be filed and posted by subsection (1) must contain a list of the maximum rate of credit service charge (Section 37-2-109) stated as an annual percentage rate, determined in accordance with the Federal Truth-In-Lending Act and Federal Reserve Board Regulation Z, that the creditor intends to charge for consumer credit transactions in each of the following categories of credit:
(e) all other.
If a variable rate is applicable to one or more categories or subcategories, the rate schedule must designate the rate as a variable rate and disclose the index for calculating changes in the rate and the cap or other limitation, if any, on any increases or decreases in the rate.
The creditor may include as many subcategories as it chooses under each of the specified categories, and may, at its option, include a series of rates for different dollar amounts and maturities. A creditor may omit one or more of the categories from the rate schedule if the creditor does not make consumer credit transactions falling within the omitted categories.