• For manufacturers who have not yet accessed import and product classification, CBP has resources to support them. In particular, CBP`s website for the publication of informed compliance contains guidelines for the classification of individual products and other useful information. www.cbp.gov/xp/cgov/trade/legal/informed_compliance_pubs/ Although there is no form required for the Certificate of Origin, there are basic elements that must be included and a standard Certificate of Origin form containing these data elements has been provided. • You can also request a preliminary ruling on HTS classification and other issues relating to your imported products. www.cbp.gov/trade/rulings In addition to the aforementioned rules of origin, there may be other ways to qualify your product: if you issue a certificate of origin for the importer, you must keep it for a period of at least five years after the date of importation, as well as all records and supporting documents relating to the origin of the goods. A free-form certification can be used as an alternative to the presentation of the Certificate of Origin by Korean producers and exporters, as well as by US importers, if it is confirmed that their products meet the requirements of the Korean Free Trade Agreement. Any application for preferences under the Korean Free Trade Agreement must be supported by a certificate of origin attesting to the originating status of the imported product. This link provides a PDF template that shows how to structure such a certificate of origin. The template is filled out and users can use it. Its use or the respect of its structure is in no way obligatory. However, in accordance with the applicable provisions, all data elements referred to therein must continue to be made available to CBP, upon request, as part of a claim for preferential tariff treatment. . .