Ohio Rev. Code Ann. § 1505.09
(A) There is hereby created in the state treasury the geological mapping fund, to be administered by the chief of the division of geological survey. Except as provided in divisions (C) and (D) of this section, the fund shall be used for both of the following purposes:
(B) The sources of money for the fund shall include all of the following:
(D) The director of natural resources shall use contributions from "Ohio geology" license plates deposited into the fund for both of the following purposes in order of preference: