17 CFR 204.2: Definitions.

(a) Administrative offset as defined in 31 U.S.C. 3701(a)(1) means withholding funds payable by the United States (including funds payable by the United States on behalf of a State government) to, or held by the United States for, a person to satisfy a claim.

(b) Person includes a natural person or persons, profit or nonprofit corporation, partnership, association, trust, estate, consortium, or other entity which is capable of owing a debt to the United States Government except that agencies of the United States, or of any State or local government shall be excluded.