Indiana Code Title 36. Local Government § 36-9-11-19

(1) pay the cost of operation, maintenance, and repair of the parking facilities of the city;

(2) pay the principal of and interest on revenue bonds issued or to be issued for the facilities;

(3) provide a reserve for the revenue bonds as a margin of safety and protection against default and retirement before maturity;

(4) pay the cost of repairs, replacements, and additions to, or remodeling of, the parking facilities;  or

(5) finance the construction of additional parking facilities;

(1) parking facility financed by the issuance of revenue bonds;  and

(2) extension, addition, or improvement to, or replacement of, such a facility;

(1) The cost of operation, maintenance, and repair of the parking facility shall be paid first, and a sufficient amount to pay that cost in the next month shall then be reserved.

(2) The money remaining in the parking fund after compliance with subdivision (1) comprises the net revenues of the facility.  On the first day of each month, the net revenues shall be transferred into a special fund designated as “parking sinking fund--project _____” until this fund contains an amount sufficient to pay the interest on and principal of the outstanding revenue bonds payable from the fund for the next twelve (12) months.  The money in the parking sinking fund may be used only for the interest on and principal of the revenue bonds payable from the fund.