Ohio Revised Code Title XXIII. Courts Common Pleas § 2311.14

(B) Before entering upon official duties, the interpreter shall take an oath that the interpreter will make a true interpretation of the proceedings to the party or witness, and that the interpreter will truly repeat the statements made by such party or witness to the court, to the best of the interpreter's ability. If the interpreter is appointed to assist a person with a developmental disability as described in division (A)(2) of this section, the oath also shall include an oath that the interpreter will not prompt, lead, suggest, or otherwise improperly influence the testimony of the witness or party.

(C) The court shall determine a reasonable fee for all such interpreter service which shall be paid out of the same funds as witness fees. If the party taxed with costs is indigent, the court shall not tax the interpreter's fees as costs, and the county or, if the court is a municipal court that is not a county-operated municipal court, the municipal corporation in which the court is located shall pay the interpreter's fees.

(D) As used in this section, “developmental disability” has the same meaning as in section 5123.01 of the Revised Code.