When the principal of and interest on bonds of the Authority issued to finance the cost of a particular project or projects for a participating facility, including any refunding bonds issued to refund and refinance such bonds, have been fully paid and retired or when adequate provision has 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 releases and documents as are necessary and required to release securities held as collateral by a trustee or trustees pursuant to the trust agreement to such participating facility, which facility had pursuant to the trust agreement, deposited and turned over such securities to a trustee or trustees in order to assure the full payment and retirement of said bonds, free and clear of all liens and encumbrances, all to the extent that title to such securities shall not, at the time, then be vested in such participating facility.