55 ILCS 5/3-6004

(55 ILCS 5/3-6004) (from Ch. 34, par. 3-6004) Sec. 3-6004. Oath. He or she shall also, before entering upon the duties of his or her office, take and subscribe the oath or affirmation prescribed by Section 3 of Article XIII of the Constitution, which shall be filed in the office of the county clerk of his or her county. (Source: P.A. 86-962.)