45 CFR § 1177.2 - Definitions.
For the purpose of this part the following definitions will apply:
(a) Claim or debt means an amount of property owed to the United States. These include but are not limited to: Overpayments to program beneficiaries; overpayments to contractors and grantees, including overpayments arising from audit disallowances; excessive cash advances to grantees and contractors; and civil penalties and assessments. A debt is overdue or delinquent if it is not paid by the due date specified in the initial notice of the debt (see § 1177.6 of this part) or if the debtor fails to satisfy his or her obligation under a repayment agreement.
(b) Debtor means an individual, organization, group, association, partnership, or corporation indebted to the United States, or the person or entity with legal responsibility for assuming the debtor's obligation.
(c) Endowment means the National Endowment for the Humanities.
(d) Administrative offset means satisfying a debt by withholding money payable by the United States to or held by the United States for a debtor.