70 ILCS 210/10.1
Section 10.1
(70 ILCS 210/10.1) (from Ch. 85, par. 1230.1) Sec. 10.1. (a) The Authority is hereby authorized to provide for the issuance, from time to time, of refunding or advance refunding bonds for the purpose of refunding any bonds or notes then outstanding (herein collectively referred to as bonds) at or prior to maturity or on any redemption date, whether an entire issue or series, or one or more issues or series, or any portions or parts of any issue or series, which shall have been issued under the provisions of this Act. (b) The proceeds of any such refunding bonds may be used to carry out one or more of the following purposes: (1) To pay the principal amount of all outstanding bonds to be retired at maturity or