Section 2-5-1.1-2 - Chairman and vice-chairman(a) The president pro tempore shall be chairman of the council beginning January 1 of odd-numbered years and vice-chairman beginning January 1 of even-numbered years.(b) The speaker shall be chairman of the council beginning January 1 of even-numbered years and vice-chairman beginning January 1 of odd-numbered years.As added by Acts1978 , P.L. 5, SEC.1.