31 C.F.R. § 29.518
(a) Notice. If a debtor's response to the demand letter does not result in payment in full, payment by offset, or payment in accordance with a voluntary repayment agreement or other repayment schedule acceptable to the Benefits Administrator, and the debtor's rights under §§ 29.512 through 29.514 have been exhausted, the Benefits Administrator must report the debtor to a credit bureau. In addition, a debtor's failure to make subsequent payments in accordance with a repayment schedule must result in a report to a credit bureau. Before making a report to a credit bureau, the Benefits Administrator must notify the debtor in writing that—
(b) Report. If, after being sent the notice described in paragraph (a) of this section, the debtor does not pay the overpayment debt or make payments current under a repayment schedule or fails to respond to the notice, and 60 days have elapsed since the notice was mailed, the Benefits Administrator will report to a credit bureau that the debtor is responsible for an unpaid debt and provide the following information: