Section 1506.20 - When and how will USADF collect past due debt through administrative offset?(a) Payments otherwise due the debtor from the United States shall be offset from the debt in accordance with 31 CFR 901.3 . These may be funds under the control of USADF or other Federal agencies. Collection may be through centralized offset by the Bureau of Fiscal Service (BFS) of the Department of the Treasury.(b) Such payments include but are not limited to vendor payments, salary, retirement, lump sum payments due upon Federal employment separation, travel reimbursements, tax refunds, loans or other assistance. Offset of Federal salary payments will be in accordance with 5 U.S.C. 5514 .(c) Before administrative offset is instituted by another Federal agency or the BFS, USADF shall certify in writing to that entity that the debt is past due and legally enforceable and that USADF has complied with all applicable due process and other requirements as described in this part and other Federal law and regulations.