(2) The department, upon the facts contained in an affidavit accompanying the request for an extension, may find good cause for failure to obtain certification within the time period described in subsection (1) of this section. If the department finds that there is good cause for such failure, the department may extend for up to one year the period that a person may serve as a telecommunicator or an emergency medical dispatcher without certification. The grant or denial of such an extension is with the sole discretion of the department. [Formerly 181.644]