Section 70 ILCS 10/3 - Financing; Budget(a) A party state shall not be obligated to appropriate funds of the state for the development, support and maintenance of the airport authority. All revenue received from the air facility and the property, both real and personal, within the jurisdiction and control of the airport authority shall be applied to the maintenance and development of the air facility. All limitations upon expenditures, which may be an element of title to the real estate held by the airport authority, shall be observed.(b) Revenue bonds to be retired exclusively from income received from the operation of the air facility may be issued by the airport authority and in the name of such authority in accordance with the laws of the state in which the air facility is located, which laws prescribe the terms and conditions for the issuance of revenue bonds by airport authorities.(c) The airport authority may secure loans from private financing and offer as collateral those assets, real, personal or mixed, not inconsistent with the laws of the state in which the airport is located.(d) Each year on or before the first day of July, the airport authority shall prepare a budget of its estimated expenditures for the fiscal year beginning on the first day of January of the succeeding year and shall on or before the first of July submit a copy of said report to the various combining governmental units. The estimated expenditures shall be allocated and prorated equally between the various combining governmental units and a statement of the allocated amount shall be included in the copy of the budgetary report submitted to the combining governmental units. To provide funds to pay its share of the proposed expenditures, each combining governmental unit is authorized to annually levy a tax on property located within the governmental unit at a rate sufficient to raise funds to pay its prorated share of estimated expenditures. Said tax shall be levied and collected in the same manner as other property taxes are levied and collected by the governmental unit and in accordance with the tax laws of the state in which such unit is located. The money raised by the levying of such tax shall be appropriated and distributed to the airport authority by the governmental unit: Provided, That such funds so appropriated shall be used exclusively for the development and maintenance of the air facility.(e) The airport authority may meet any of its obligations in whole or in part with funds made available to it under the provisions of section 2 of this Act: Provided, That the airport authority takes specific action setting aside such funds prior to the incurring of any obligation to be met in whole or in part in this manner.(f) The expenses and any other costs for each member of the airport authority shall be met by the airport authority in accordance with such standards and procedures as it may establish under its bylaws and rules and regulations.(g) The airport authority shall be required to keep accurate record of all accounts of receipts and disbursements. The receipts and disbursements of the airport authority shall be subject to an annual audit, and accounting procedures established under its bylaws: Provided, That all receipts and disbursements of funds handled by the airport authority shall be audited by a qualified public accountant and the report of the audit shall be incorporated into and become a part of the annual report of the airport authority.(h) The accounts of the airport authority shall be open to inspection by the general public at any reasonable time.