35 ILCS 200/24-30 : Government — Revenue — Property Taxes — Property Tax Code — General Provisions —30 - Oaths TEXT PDF Any oath, authorized to be administered under this Code, may be administered by an assessor or deputy assessor, or by any other officer having authority to administer oaths. 35 ILCS 200/24-30 Laws 1939, p. 886; P.A. 88-455.