Indiana Code Title 8. Utilities and Transportation § 8-25-5-13

Sec. 13. The general assembly pledges to and covenants with the owner of any bonds issued under this chapter that the general assembly will not limit or alter the ability of the county to fulfill the terms of the agreements or pledges made with bondholders or in any way impair the rights or remedies of the bondholders until the bonds and related obligations are fully met and discharged.