Title VI of the Clean Water Act (CWA) Amendments of 1987 provides flexibility for States to use four percent of all capitalization grant awards for the reasonable costs of administering their Clean Water State Revolving Fund (CWSRF) programs. Because many States have CWSRF administrative costs which exceed the four percent limit, the U.S. Environmental Protection Agency (EPA) has allowed States to charge fees on CWSRF loans. This guidance addresses the use of fees that are charged on loans and included as principal in loans and the use of fees that are charged on loans but not included as principal in loans. These requirements will be included as terms and conditions in all future grant agreements (or operating agreements).