Indiana Code Title 16. Health § 16-23-1-16

Sec. 16. (a) The governing board shall organize each year by the election of officers at the regular February meeting or the first called meeting in that month.  The officers of the board are president, vice president, secretary, and treasurer.  The officers must be board members, except that the board may appoint a separate treasurer from outside the board membership as provided by section 14 of this chapter.

(b) The officers serve from the date of election until February 1 of the next year and until respective successors are elected and qualified.

(c) If a vacancy exists in any office at a time other than the date for the annual election of officers, the governing board shall fill the vacancy for the unexpired term.