Indiana Code Title 8. Utilities and Transportation § 8-14.5-3-9

Sec. 9. The authority may receive and accept from any federal or state agency grants for or in aid of the construction of any project and repay any grant to the authority or to the department from a federal agency if the repayment is necessary to free the authority from restrictions which the authority determines to be in the public interest to remove.  Any repayment under this section shall be made from funds available to the authority at the time the repayment is required and shall be made in a way that does not impair any contract between the authority and the owners of its bonds or notes.