Ohio Rev. Code Ann. § 339.061
(C) The board of county hospital trustees of a charter county hospital shall invest money described in division (B) of this section pursuant to an investment policy adopted by the board in a public meeting. The investment policy does not take effect unless it is approved by the county investment advisory committee established pursuant to section 135.341 of the Revised Code. The investment policy shall provide for all of the following:
(4) The establishment of an investment committee within the board of county hospital trustees, which shall meet at least quarterly, to review and recommend revisions to the board's investment policy and to advise the board on investments made under division (C) of this section for the purpose of assisting the board in meeting its obligations as a fiduciary under that division. The policy shall authorize the committee to retain the services of an investment advisor who meets both of the following qualifications: