Except as otherwise provided in this section, if an obligor is paying off an arrearage owed under a support order pursuant to a withholding or deduction notice or order issued under section 3121.03 of the Revised Code, a support order newly issued or modified, or any other order issued to collect the arrearage, the child support enforcement agency administering the notice or order may also take any action, including, but not limited to, any of the following to collect any arrearage amount that has not yet been collected under the notice or order, unless the obligee and obligor agree in a writing signed by the obligee and obligor and approved by the court by journal entry that the additional actions be limited to the actions provided for in division (C) of this section:
R.C. § 3123.22