Section 75 ILCS 16/30-90 - Termination of appropriations(a) Notwithstanding any limitations imposed by law, all appropriations made in the annual budget shall terminate with the close of the fiscal year provided for, except that remaining balances, in amounts up to 20% of those appropriations, shall be available until August 30 for the authorization of the payment of obligations incurred before the close of the fiscal year and until September 30 for payment of those obligations. All remaining balances shall be available for transfer to be accumulated under this Act.(b) Transfers from one appropriation of any amount specified for any object and purpose, not affecting the total amount appropriated, may be made at any meeting of the board by an ordinance enacted by a two-thirds vote of all the trustees present and voting. By a like vote, the board may by ordinance make appropriations in excess of those authorized by the budget in order to meet an immediate and unforeseen emergency. After the adoption of the annual budget and appropriation ordinance, no other and further appropriations (except as specified in this Section or pursuant to the financial provisions of the Illinois Municipal Budget Law) shall be made at any other time during the fiscal year.