Mississippi Code Title 23. Elections § 23-15-905

(1) No person may qualify as a candidate for more than one (1) office if the election for those offices occurs on the same day. If a person takes the steps necessary to qualify for more than one (1) office, the appropriate executive committee or election commissioner shall determine the last office for which the person qualified and the person shall be considered to be qualified as a candidate for that office only and the person shall be notified of this determination. The provisions of this subsection shall not apply to elections for municipal office.

(2) No person may qualify as a candidate for more than one (1) municipal office if the election for those offices occurs on the same day. If a person takes the steps necessary to qualify for more than one (1) office, the appropriate executive committee or election commissioner shall determine the last office for which the person qualified and the person shall be considered to be qualified as a candidate for that office only and the person shall be notified of this determination.