70 ILCS 2005/12
A district organized under this Act, in the preparation of its annual budget and appropriation ordinance, may provide that an amount equal to not more than 0.5% of the total equalized assessed value of real property situated in the district shall be allocated to and accumulated in an Equipment Repair or Replacement Fund for the purposes of equipment repairs or replacements of specific types of district equipment. Expenditures from the Equipment Repair or Replacement Fund shall be budgeted and appropriated for the fiscal year in which the equipment repair or replacement will occur. Upon completion or abandonment of any object or purpose for which an Equipment Repair or Replacement Fund has been initiated, monies remaining in the fund shall be transferred into the general corporate fund of the district on the first day of the fiscal year following the abandonment or completion resulting in the surplus moneys in such fund.
70 ILCS 2005/12