7 C.F.R. § 1956.136
(a) Judgment debts. Subject to the provisions of § 1956.112(d) of this subpart, judgment debts, regardless of the amount, may be charged off without the debtor's signature upon a favorable recommendation of the servicing official provided:
(b) Nonjudgment debts. Debts which cannot be settled under other sections of this subpart may be charged off without the debtor's signature upon a favorable recommendation of the servicing official in the following instances:
(2) When there is no known security for the debt, the debtor has no other assets from which the debt could be collected, and the debtor: