70 ILCS 2805/26e
Bonds provided for such drainage system shall be issued in such amounts as may be necessary to provide sufficient funds to pay all costs of acquisition, including engineering, legal, and other expenses, together with interest to a date 6 months subsequent to the estimated date of completion. Bonds issued for such drainage system are negotiable instruments. They shall be executed by the president and by the district clerk and shall be sealed with the corporate seal of the district. In case any of the officers whose signatures appear on the bonds, or coupons attached thereto, ceases to hold his office before delivery of the bonds, his signature nevertheless shall be valid and sufficient for all purposes the same as if he had remained in office until the delivery of the bonds. The bonds shall be sold in such manner as the trustees shall determine except that, if issued to bear interest at the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, the bonds shall be sold for not less than par and accrued interest, and except that the selling price of bonds bearing less than the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract shall be such that the interest cost to the district of the money received from the bond sale shall not exceed the maximum rate authorized by the Bond Authorization Act, as amended at the time of the making of the contract, computed to maturity according to standard tables of bond values.
With respect to instruments for the payment of money issued under this Section either before, on, or after the effective date of this amendatory Act of 1989, it is and always has been the intention of the General Assembly (i) that the Omnibus Bond Acts are and always have been supplementary grants of power to issue instruments in accordance with the Omnibus Bond Acts, regardless of any provision of this Act that may appear to be or to have been more restrictive than those Acts, (ii) that the provisions of this Section are not a limitation on the supplementary authority granted by the Omnibus Bond Acts, and (iii) that instruments issued under this Section within the supplementary authority granted by the Omnibus Bond Acts are not invalid because of any provision of this Act that may appear to be or to have been more restrictive than those Acts.
70 ILCS 2805/26e