Miss. Code § 65-1-3
There shall be a State Highway Commission which shall consist of three (3) members, one (1) from each of the three (3) Supreme Court Districts of the state. Only qualified electors who are citizens of the Supreme Court District in which he or she seeks election for five (5) years immediately preceding the day of the election shall be eligible for such office; however, the five-year citizen requirement shall apply to elections held from and after January 1, 2020.
On Tuesday after the first Monday in November of the year 1951, and every four (4) years thereafter, State Highway Commissioners shall be elected at the same time and in the same manner as the Governor is chosen; and the laws governing primary elections and the holding of general elections in this state shall apply to and govern the nomination and election of State Highway Commissioners. The State Highway Commissioners so elected shall enter upon the discharge of the duties of their respective offices on the first Monday of January in the year next succeeding the date of their election, and they shall serve for a term of four (4) years and until their successors shall have been duly elected and qualified.
If any one or more of the State Highway Commissioners elected under the provisions of this chapter shall die, resign or be removed from office, the Governor shall fill the vacancy by appointment for the unexpired term, provided such unexpired term shall not exceed twelve (12) months. If such unexpired term shall exceed twelve (12) months, the Governor shall, within fifteen (15) days from the date of such vacancy, by proclamation duly made, call an election in the Supreme Court District in which such vacancy exists, to be held within sixty (60) days from the date of the issuance of such proclamation, at which election a State Highway Commissioner shall be elected to fill such vacancy for the remaining portion of such unexpired term. Such special election shall be held in the manner provided for holding general elections in this state, as far as practicable.
Each of said State Highway Commissioners, before entering upon the discharge of the duties of his office, shall take and subscribe the oath of office required of other state officials and shall execute bond in the sum of Fifty Thousand Dollars ($50,000.00), with some surety company authorized to do business in this state as surety, conditioned for the faithful performance of the duties of his office and for the faithful and true accounting of all funds or monies or property coming into his hands by virtue of his office, and conditioned further that all such funds, monies and property will be expended and used by him only for purposes authorized by law, said bond to be approved by the Governor or Attorney General and to be filed in the Office of the Secretary of State. The premium on such bonds shall be paid out of the funds of the Mississippi Department of Transportation.
From and after July 1, 1992, the State Highway Commission shall be the Mississippi Transportation Commission and the members thereof shall be the Mississippi Transportation Commissioners.
Miss. Code § 65-1-3