Ohio Rev. Code Ann. § 5531.10
(A) As used in this chapter:
(E) The bond proceedings may contain additional provisions as to:
(J) In the discretion of the issuing authority, obligations may be secured additionally by a trust agreement or indenture between the issuing authority and a corporate trustee which may be any trust company or bank possessing corporate trust powers that has a place of business within or without the state. Any such agreement or indenture may contain the order authorizing the issuance of the obligations, any provisions that may be contained in any bond proceedings, and other provisions which are customary or appropriate in an agreement or indenture of such type, including, but not limited to:
(Q)
(2) An action taken under division (Q)(2) of this section does not limit the generality of division (Q)(1) of this section, and is subject to division (C) of this section and, if and to the extent otherwise applicable, Section 13 of Article VIII, Ohio Constitution. The bond proceedings may contain a covenant that, in the event the pledged receipts primarily pledged and required to be used for the payment of bond service charges on obligations issued under this section, and for the establishment and maintenance of any reserves, as provided in the bond proceedings, are insufficient to make any such payment in full when due, or to maintain any such reserve, the director of transportation shall so notify the governor, and shall determine to what extent, if any, the payment may be made or moneys may be restored to the reserves from lawfully available moneys previously appropriated for that purpose to the department of transportation. The covenant also may provide that if the payments are not made or the moneys are not immediately and fully restored to the reserves from such moneys, the director shall promptly submit to the governor and to the director of budget and management a written request for either or both of the following: