70 ILCS 1863/21
The governing and administrative body of the Port District shall be a Board of Commissioners consisting of 5 members, to be known as the Upper Mississippi River International Port District Board. All members of the Board shall be residents of the District and shall be known as Commissioners of the Upper Mississippi River International Port District Board. The members of the Board may serve with compensation not to exceed $6,000 per year and shall be reimbursed for actual expenses incurred by them in the performance of their duties. No Commissioner of the Board shall have any private financial interest, profit or benefit in any contract, work or business of the District nor in the sale or lease of any property to or from the District, except to the extent allowed under The Public Officer Prohibited Activities Act.
70 ILCS 1863/21