48 CFR §9.108-3

1. (a)In order to be eligible for contract award, an offeror must represent that it is neither an inverted domestic corporation, nor a subsidiary of an inverted domestic corporation. Any offeror that cannot so represent is ineligible for award of a contract, unless waived in accordance with the procedures at 9.108-4.
2. (b)The contracting officer may rely on an offeror's representation that it is not an inverted domestic corporation unless the contracting officer has reason to question the representation.