Name of candidate to appear on ballot but once -- Exceptions for filling of vacancy

vacancy. No candidate's name shall appear on any ballot, including any federal provisional ballot, federal provisional absentee ballot, or absentee ballot more than once, except that a candidate's name may appear twice if he or she is a candidate for a primary or a regular election and also a candidate to fill a vacancy in the same office required to be filled at a special election, when the special election to fill a vacancy is scheduled for the regular election day.