Indiana Code Title 13. Environment § 13-21-7-11

Sec. 11. (a) In fixing the amount of the necessary levy, the board shall consider:

(b) Instead of making the levy or to reduce the amount of the levy, the board shall annually set aside by resolution the amount of the net revenues to be collected before maturity of the principal and interest of the waste management district bonds payable in the following year.

(c) If the board adopts this resolution under subsection (b), the board may not use any part of the amount set aside out of the net revenues for any purpose other than the payment of waste management district bonds and the interest on the bonds.  A proportionate payment of this amount shall be made monthly to the fund.