65 ILCS 5/9-3-2
In this Division 3, the following terms have the meaning ascribed to them unless the context indicates otherwise:
"Municipality" means any city, village, or incorporated town.
"Attorney" means the attorney employed by the municipality to furnish the necessary legal services in connection with any local improvement to be constructed under this Division 3.
"Engineer" means the engineer employed by the municipality to prepare the necessary plans, estimates, and specifications, and supervise construction of any local improvement to be constructed under this Division 3.
"Assessed valuation" means the value of the property as shown on the tax collectors' record for the last year in which taxes were levied.
"Assessor" or "assessing officer" means the county or township official who performs the duties of assessor.
"Committee on local improvements" means the committee created pursuant to Section 9-3-3 consisting of the presiding officer of the corporate authorities of the municipality and an attorney and an engineer.
"Local improvements" means and includes the improving, widening or extending of any street, avenue, lane, alley or other public place by grading, paving, repaving, resurfacing, and constructing curbs, gutters, storm sewers, sanitary sewers, water mains, walks, gas mains, street lights and all necessary appurtenances thereto and otherwise improving the same, or repairing of curbs, gutters, storm sewers, sanitary sewers, water mains, walks, gas mains, street lights and all necessary appurtenances thereto and otherwise improving the same.
"Prime Commercial Rate" means such prime rate as from time to time is publicly announced by the largest commercial banking institution located in this State, measured in terms of total assets.
65 ILCS 5/9-3-2