a description of the products concerned;(b) the relevant category and the related tariff and statistical references;(c) the reasons which have led to the decision.3. Where a decision on classification results in a change of classification practice or a change of category of any product subject to the Agreement, the competent authorities of the Community shall provide 30 day's notice, from the date of the Community's communication, before the decision is put into effect. Products shipped before the date of application of the decision shall remain subject to the earlier classification practice, provided that the goods in question are presented for importation into the Community within 60 days of that date.4. Where a Community decision on classification resulting in a change of classification practice or a change of categorization of any product subject to the Agreement affects a category subject to restraint, the two Parties agree to enter into consultations in accordance with the procedures described in Article 16 (1) of the Agreement with a view to honouring the obligation under the second subparagraph of Article 10 (3) of the Agreement.TITLE IIORIGINArticle 21. Products originating in the Republic of Korea for export to the Community in accordance with the arrangements established by this Agreement shall be accompanied by a certificate of Korean origin conforming to the model annexed to this Protocol.2. The certificate of origin shall be issued by the competent governmental authorities of the Republic of Korea if the products in question can be considered productsoriginating in that country within the meaning of the relevant rules in force in the Community.3. However, the products in Group III may be imported into the Community in accordance with the arrangements established by this Agreement on production of a declaration by the exporter on the invoice or other commercial document relating to the products to the effect that the products in question originate in the Republic of Korea within the meaning of the relevant rules in force in the Community.4. The certificate of origin referred to in paragraph 1 shall not be required for import of goods covered by a certificate of origin Form A or Form APR completed in accordance with the relevant Community rules in order to qualify for generalized tariff preferences.Article 3The certificate of origin shall be issued only on application by the exporter or, under the exporter's responsibility, by his authorized representative. The competent governmental authorities of the Republic of Korea shall ensure that the certificate of origin is properly completed and for this purpose they shall call for any necessary documentary evidence or carry out any check which they consider appropriate.Article 4Where different criteria for determining origin are laid down for products falling within the same category, certificates or declarations of origin shall contain a sufficiently detailed description of the goods to enable the criterion to be determined on the basis of which the certificate was issued or the declaration drawn up.Article 5The discovery of slight discrepancies between the statements made in the certificate of origin and those made in the documents produced to the customs office for the purpose of carrying out the formalities for importing the product shall not ipso facto cast doubt upon the statements in the certificate.TITLE IIIDOUBLE CHECKING SYSTEM FOR CATEGORIES OF PRODUCTS WITH QUANTITATIVE LIMITSSection IExportationArticle 6The competent authorities of the Republic of Korea shall issue an export licence in respect of all consignments from theRepublic of Korea of textile products referred to in Annex II, up to the relevant quantitative limits as may be modified by Articles 7, 13 and 14 of the Agreement and of textile products subject to any definitive or provisional quantitative limits established as a result of the application of Article 8 of the Agreement.Article 71. The export licence shall conform to the model annexed to this Protocol. It must certify inter alia that the quantity of the product in question has been set off against the quantitative limit prescribed for the category of the product in question.2. Each export licence shall only cover one of the categories of products listed in Annex II of this Agreement. It may be used for one or more consignments of the products in question.3. Where the conversion rate provided for in Annex II is applied the following note must be inserted in box 9 of the export licence:'conversion rate for garments of a commercial size not exceeding 130 cm is to be applied'.Article 8The competent Community authorities must be notified forthwith of the withdrawal or alteration of any export licence already issued.Article 91. Exports shall be set off against the quantitative limits established for the year in which shipment of the goods has been effected, even if the export licence is issued after such shipment.2. For the purpose of applying paragraph 1, shipment of the goods is considered to have taken place on the date of their loading on to the exporting aircraft, vehicle or vessel.Article 10The presentation of an export licence, in application of Article 12, shall be effected not later than 31 March of the year following that in which the goods covered by the licence have been shipped.Section IIImportationArticle 11Importation into the Community of textile products subject to quantitative limits shall be subject to the presentation of an