In the case of self-certification, the exporter or the manufacturer will have the right to assess the compliance of its product with the applicable origin criteria. It may then issue a certificate of origin using a prescribed form. Sometimes, there is no prescribed form, which means the exporter or the manufacturer is allowed to simply provide a (sworn) declaration about the origin of the goods. The declaration may either be made on a separate document, or incorporated in another trade document, such as an invoice.