invoice or other commercial document relating to the products to the effect that the products in question originate in Pakistan 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 3It is the understanding of both parties that the certificate of origin shall continue to be issued only on application having been made in writing by the exporter or, under the exporter's responsibility, by his authorized representative. The competent governmental authorties of Pakistan shall continue to 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 Pakistan shall issue an export licence in respect of all consignments from Pakistan oftextile 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 import authorization or document.Article 121. The competent Community authorities shall issue such import authorization or document automatically within fiveworking days of the presentation by the importer of the original of the corresponding export licence.The import authorization or document shall be valid for six months.2. The competent Community authorities shall cancel the already issued import authorization or document if the corresponding export licence has been withdrawn.However, if the competent Community authorities are notified about the withdrawal or cancellation of the export licence only after the products have been imported into the Community, the quantities involved shall be set off against the quantitative limit for the category and the quota year in question.Article 131. If the competent Community authorities find that the total quantities covered by export certificates issued by Pakistan for a particular category in any Agreement year exceed the quantitative limit established in Annex II for that category, as may be modified by Articles 7, 13 and 14 of the Agreement, or any definitive or provisional limit established under Article 8 of the Agreement, the said authorities may suspend the further issue of import authorizations or documents. In this event, the competent Community authorities shall immediately inform the authorities of Pakistan and the special consultation procedure set out in Article 16 of the Agreement shall be initiated forthwith.2. Exports of Pakistani origin not covered by Pakistani export licences issued in accordance with the provisions of this Protocol may be refused the issue of import authorizations or documents by the competent Community authorities.However, if the import of such products is allowed into the Community by the competent Community authorities, the quantities involved shall not be set off against the appropriate quantitative limits set out in Annex II or established as a result of the application of Article 8 of the Agreement,