Ohio Rev. Code § 3101.10: License to solemnize marriages.

A minister upon producing to the secretary of state, credentials of the minister's being a regularly ordained or licensed minister of any religious society or congregation, shall be entitled to receive from the secretary of state a license authorizing the minister to solemnize marriages in this state so long as the minister continues as a regular minister in that society or congregation. A minister shall produce for inspection the minister's license to solemnize marriages upon demand of any party to a marriage at which the minister officiates or proposes to officiate or upon demand of any probate judge. The secretary of state shall issue a license to solemnize marriages in this state in accordance with Chapter 4796. of the Revised Code to a minister if either of the following applies:

(A) The minister holds a license in another state.

(B) The minister has satisfactory work experience, a government certification, or a private certification as described in that chapter as a minister who solemnizes marriages in a state that does not issue a license to solemnize marriages.