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.
S.C. Code § 37-2-305