The mayor of a city, the president of a village or incorporated town, the clerk, the chairman of a plan commission, and the chairman of a zoning board of appeals of a municipality have power to administer oaths and affirmations on all lawful occasions. The corporate authorities by ordinance may authorize other municipal officers to administer oaths.
65 ILCS 5/3.1-15-20
Administering oaths
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.