Before entering upon the duties of their respective offices, all officers elected or appointed under this Article shall take and subscribe the oath or affirmation prescribed by the Illinois Constitution. This oath or affirmation, when subscribed, shall be filed with the municipal clerk.
65 ILCS 5/4-4-1
Oath or affirmation
P.A. 87-1119.
Official source: Illinois General Assembly. Reproduced from public-domain Illinois statutes; confirm against the official source for the current text. Not legal advice.