(a) Except as noted in paragraph (b) of this section, after OPM sends IRS notification of an individual's liability for a debt, OPM will promptly notify IRS of any change in the notification, if OPM—

(1) Determines that an error has been made with respect to the information contained in the notification;

(2) Receives a payment or credits a payment to the account of the debtor named in the notification that reduces the amount of the debt referred to the IRS for offset; or

(3) Receives notification that the individual owing the debt has filed for bankruptcy under title 11 of the United States Code or has been adjudicated bankrupt and the debt has been discharged.

(b) OPM will not notify the IRS to increase the amount of a debt owed by a debtor named in OPM's original notification to the IRS.

(c) If the amount of a debt is reduced after referral by OPM and offset by the IRS, OPM will refund to the debtor any excess amount and will promptly notify the IRS of any refund made by OPM.