65 ILCS 5/9-3-35
At any time after 15 days from date of acceptance of the work by the corporate authorities bonds may be issued to anticipate the collection of the unpaid portions of the assessment then remaining unpaid for the purpose of paying the cost of the improvement, including cost of making and collecting the assessment, engineering, inspection, attorney's fees and other costs. The bonds may be sold by the corporate authorities for not less than par and accrued interest to date of delivery, or such bonds may be issued and delivered to the contractor in payment of the work at not less than par. The bonds shall be authorized pursuant to a resolution adopted by the corporate authorities and shall bear a date not earlier than 20 days after the date of the awarding of the contract for the construction of the improvement and coupons shall be attached thereto representing interest due thereon as it matures, interest to be paid annually. The bonds shall be executed by the presiding officer of the municipality and attested by the clerk of such municipality, with the corporate seal attached thereto. The bonds shall recite specifically that they are payable solely and only from the assessment levied for the payment of the cost of the improvement, designating the improvement for which the assessment has been levied, and shall mature on or before the first day of December next succeeding the first day of January on which the last installment shall mature, and shall bear interest at a rate of one per cent less than the installments of the assessment against which they are issued bears. Interest coupons attached to the bond shall bear the official or facsimile signatures of the presiding officer and clerk. The bonds shall be made payable at such place or places either within or without the State of Illinois, as shall be declared by resolution of the corporate authorities. The bonds shall be numbered consecutively beginning with number one upwards and shall be payable in their numerical order, and redeemable prior to maturity in numerical order as hereinafter provided. Such bonds shall be registered by the treasurer of such municipality in a book provided for that purpose and each bond shall bear the certificate of such registration and upon the books of such treasurer shall be noted the name of the holder thereof and his address. Any subsequent holder may cause the same to be registered in the name of such subsequent holder upon submission of proper proof of ownership. Such municipality shall have the right to call and pay the bonds, or any number thereof, in the manner set out in Section 9-3-36.
65 ILCS 5/9-3-35