 This certificate is usually required by the importing country's customs authority in deciding whether the imports should benefit from preferential treatment allowed under the applicable agreement.Unlike non-preferential certificate of origin which often indicates only the country of origin in its title, a preferential certificate will indicate at the top of the document under which trade agreement it is issued.As compared to non-preferential certificate of origin, preferential certificate of origin has more practical use because it enables the claim of benefit beyond the MFN treatment.