GUIDANCE BY CBP
The origin declarations, origin statements, or certifications of origin must be completed and signed by an official of the importer, exporter, or producer or agent of the importer, exporter, or producer having knowledge of the relevant facts to the origin of the goods, as specified by the respective trade preference program.
A claim for preferential tariff treatment may be denied if an importer fails to submit, when requested by CBP, the completed origin declaration, origin statement, or certification of origin prepared in accordance with the requirements of the trade preference program.