12 CFR 1208.61: Notice.

At least 30 days before the initiation of garnishment proceedings, FHFA will send, by first class mail to the debtor's last known address, a written notice informing the debtor of:

(a) The nature and amount of the debt;

(b) FHFA's intention to initiate proceedings to collect the debt through deductions from the debtor's pay until the debt and all accumulated interest penalties and administrative costs are paid in full;

(c) An explanation of the debtor's rights as set forth in § 1208.62(c); and

(d) The time frame within which the debtor may exercise these rights. FHFA shall retain a stamped copy of the notice indicating the date the notice was mailed.