6 C.F.R. § 11.14
Other Federal agencies send non-centralized offset requests to DHS at: U.S. Department of Homeland Security, Attn: Chief Financial Officer, Mail Stop 0200, Washington, DC 20528-0200. Those agencies must comply with 31 CFR 901.3 when forwarding the requests to DHS. DHS does not review the merits of the creditor agency's determination with regard to the existence or the amount of the debt. When two or more agencies are seeking offsets from payments made to the same person, or when two or more debts are owed to a single creditor agency, DHS may determine the order in which the debts will be collected or whether one or more debts should be collected by offset simultaneously. For the purposes of this section, debts owed to DHS generally take precedence over debts owed to other agencies, but DHS may pay a debt to another agency prior to collecting for DHS. DHS determines the order of debt collection based upon the best interests of the United States.
6 C.F.R. §11.14