Del. Code tit. 16 § 9208
When the principal of an interest on bonds of the Authority issued to finance the cost of a particular project or projects for 1 or more participating facilities, including any refunding bonds issued to refund and refinance such bonds, have been fully paid and retired or when adequate provisions have been made to fully pay and retire the same, and all other conditions of the resolution or trust agreement authorizing and securing the same have been satisfied and the lien of such resolution or trust agreement has been released in accordance with the provisions thereof, the Authority shall promptly do such things and execute such deeds and conveyances as are necessary and required to convey title to such project or projects to such participating facility or facilities, all to the extent that title to such project or projects is not, at the time, vested in such participating facility or facilities.
16 Del. C. § 9208