The county board of each county having a population of less than 500,000 population, shall have the power and it shall be its duty, in the manner provided in this Act:
1.To elect the commissioner defined in Section 4.2.To appoint a county superintendent of airports as provided in Section 35.3.To levy a tax of not to exceed 2 mills as provided in Section 59.4.To issue and sell General Bonds as provided in Section 60, provided the aggregate amount of such bonds outstanding at any time shall not exceed 1% of the value of all the taxable property of the county.5.To issue and sell Revenue Bonds or other evidences of indebtedness as provided in Section 61 provided the aggregate amount of such bonds outstanding at any time shall not exceed 2% of the value of all the taxable property of the county.6.To perform such other acts as may be necessary to effectuate the provisions of this Act. All actions taken by the county board shall be by roll call vote.