Section 1480.901 - General(a) The CO can accept an offeror's written representation of being an IEE (as defined in 1480.201) only when it is submitted with an offer in response to a solicitation under the Buy Indian Act. Another interested party may challenge the representation of an offeror or contractor by filing a written challenge to the applicable CO in accordance with the procedures in 1480.902.(b) After receipt of offers, the CO may question the representation of any offeror in a specific offer by filing a formal objection with the CCO.