40 CFR § 13.2 - Definitions.
(a) Debt means an amount owed to the United States from sources which include loans insured or guaranteed by the United States and all other amounts due the United States from fees, grants, contracts, leases, rents, royalties, services, sales of real or personal property, overpayments, fines, penalties, damages, interest, forfeitures (except those arising under the Uniform Code of Military Justice), and all other similar sources. As used in this regulation, the terms debt and claim are synonymous.
(b) Delinquent debt means any debt which has not been paid by the date specified by the Government for payment or which has not been satisfied in accordance with a repayment agreement.
(c) Debtor means an individual, organization, association, corporation, or a State or local government indebted to the United States or a person or entity with legal responsibility for assuming the debtor's obligation.
(d) Agency means the United States Environmental Protection Agency.
(e) Administrator means the Administrator of EPA or an EPA employee or official designated to act on the Administrator's behalf.
(f) Administrative offset means the withholding of money payable by the United States to, or held by the United States for, a person to satisfy a debt the person owes the Government.
(g) Creditor agency means the Federal agency to which the debt is owed.
(h) Disposable pay means that part of current basic pay, special pay, incentive pay, retired pay, retainer pay, or in the case of an employee not entitled to basic pay, other authorized pay remaining after the deduction of any amount described in 5 CFR 581.105 (b) through (f). These deductions include, but are not limited to: Social security withholdings; Federal, State and local tax withholdings; health insurance premiums; retirement contributions; and life insurance premiums.
(i) Employee means a current employee of the Federal Government including a current member of the Armed Forces.
(j) Person means an individual, firm, partnership, corporation, association and, except for purposes of administrative offsets under subpart C and interest, penalty and administrative costs under subpart B of this regulation, includes State and local governments and Indian tribes and components of tribal governments.
(k) Employee salary offset means the administrative collection of a debt by deductions at one or more officially established pay intervals from the current pay account of an employee without the employee's consent.
(l) Waiver means the cancellation, remission, forgiveness or non-recovery of a debt or debt-related charge as permitted or required by law.