45 ILCS 165/20

(a) Within 90 days after the effective date of this Act, the Governor shall appoint one commissioner to the Mid-America Port Commission created by agreement between Illinois, Missouri, and Iowa. This commissioner must be appointed from among those members of the Mid-America Intermodal Authority Port District Board that were appointed by the Governor. (b) Within 90 days after the effective date of this Act, the Mid-America Intermodal Authority Port District Board, from its members, shall appoint 2 commissioners to the Mid-America Port Commission. (c) Commissioners must be members of the Mid-America Intermodal Authority Port District Board. If a commissioner ceases to be a member of the Mid-America Intermodal Authority Port District Board, there shall be vacancy in the office of commissioner. (d) A vacancy in the office of commissioner shall be filled by appointment of the Governor, in the case of a vacancy in the office of commissioner appointed by the Governor, or by the Mid-America Intermodal Authority Port District Board, in the case of a vacancy in the office of commissioner appointed by the Mid-America Intermodal Authority Port District Board.