(70 ILCS 1830/24.1) (from Ch. 19, par. 524.1)
    Sec. 24.1. All revenue bonds shall be issued and sold by the Board in such manner as the Board shall determine. However, if any bonds are issued to bear interest at the maximum rate of interest allowed by Section 23.1 of this Act, the bonds shall be sold for not less than par and accrued interest. The selling price of bonds bearing interest at a rate less than the maximum allowable interest rate per annum shall be such that the interest cost to the District of the money received from the bond sale shall not exceed the maximum annual interest rate allowed by Section 23.1 of this Act, computed to absolute maturity of such bonds according to standard tables of bond values.
(Source: P.A. 77-2109.)