17 C.F.R. § 204.65
(e) Amounts withheld.
(2) Subject to the provisions of paragraphs (e)(3) and (e)(4) of this section, the amount of garnishment shall be the lesser of:
(3) When a debtor's pay is subject to withholding orders with priority, the following shall apply:
(ii) If amounts are being withheld from a debtor's pay pursuant to a withholding order served on an employer before a withholding order issued pursuant to this section, or if a withholding order for family support is served on an employer at any time, the amounts withheld pursuant to the withholding order issued under this section shall be the lesser of:
(g) Financial hardship.
(2) At least annually, the Commission will review its debtors' accounts to ensure that garnishment has been terminated for accounts that have been paid in full.
(j) Refunds.