Ohio Rev. Code Ann. § 1112.12
(B) Securities pledged by a family trust company to satisfy the requirements of division (A) of this section shall be one or more of the following, provided that the bonds or other obligations are rated at the time of purchase in the three highest classifications established by at least one nationally recognized standard rating service and purchased through a registered securities broker or dealer:
(D) The superintendent shall approve securities to be pledged by a family trust company pursuant to this section if the securities are all of the following: