If required by law, an enforcement hearing shall be held before any final enforcement order is issued. In cases for which an enforcement hearing is not required by law to be held before an enforcement order is issued, the commission may elect to hold a hearing, on its own motion, or upon the request of the executive director, before issuing a final enforcement order or direct SOAH to hold such a hearing. In those cases for which an enforcement hearing is not required by law to be held before an enforcement order is issued, or for which procedures for an enforcement hearing are not specifically prescribed by rule or statute, the commission may elect to have SOAH hold such hearings under the commission's rules, including the procedures established by this chapter.