Ohio Rev. Code § 3121.16: Notice is final and enforceable.

If a child support enforcement agency sends a notice imposing a withholding or deduction requirement or a court or agency sends an order imposing any other appropriate requirement to a person under section 3121.14 or 3121.15 of the Revised Code, the notice or order also shall be considered to have been issued under section 3121.03 of the Revised Code. The notice or order is final and is enforceable by the court.