(1) "Administrator" means the administrator of the Unemployment Insurance Division of the Department of Labor and Industry.

(2) "Claimant" means an applicant for unemployment benefits.

(3) "Good cause" means reasonably compelling circumstances which did not result from any act or omission on the part of the person claiming good cause and which could not be overcome by reasonable diligence on the part of the person.

(4) "Hearing officer" means the impartial salaried appeal referee designated to hear and decide the disputed claim in a contested case proceeding.

(5) "Respondent" means a nonappealing party.