a duplicate to be made out on the basis of the export documents in his possession. The duplicate of any such certificate or licence so issued shall bear the endorsement 'duplicata` or 'duplicate`.2. The duplicate shall bear the date of the original export licence or certificate of origin.TITLE V PROVISIONS CONCERNING COMMUNITY EXPORTS TO HUNGARYArticle 17Should it be necessary, either Party may request consultations in accordance with Article 14 of the Protocol, in order to establish specific administrative provisions concerning Community exports to Hungary.Such provisions shall afford the same or equivalent degree of protection to Community exporters as is provided for Hungarian exporters under this Protocol.TITLE VI ADMINISTRATIVE COOPERATIONArticle 18The Community and Hungary shall cooperate fully in the implementation of the provisions of this Protocol. To this end, contacts and exchanges of views, including on technical matters, shall be facilitated by both Parties.Article 19In order to ensure the correct application of this Appendix, the Community and Hungary offer mutual assistance for the checking of the authenticity and the veracity of export licences and certificates of origin issued or of any declarations made within the terms of this Appendix.Article 20Hungary shall transmit to the Commission of the European Communities the names and addresses of the authorities competent to issue and verify the export licences and the certificates of origin, together with specimens of the stamps used by these authorities and specimen signatures of officials responsible for signing the export licences.Article 211. Subsequent verification of certificates of origin or export licences shall be carried out at random, or whenever the competent Community authorities have reasonable doubt as to the authenticity of the certificate or licence or as to the accuracy of the information regarding the true origin of the products in question.2. In such cases, the competent authorities in the Community shall return the certificate of origin or the export licence or a copy thereof to the competent Hungarian authority, giving, where appropriate, the reasons of form or substance which justify an enquiry. If the invoice has been submitted, such invoice or a copy thereof shall be attached to the certificate or to the licence or their copies. The authorities shall also forward any information that has been obtained suggesting that the particulars given on the said certificate or licence are inaccurate.3. The provisions of paragraph 1 above shall also apply to subsequent verifications of the declarations of origin provided for in Article 2 of this Appendix.4. The results of the subsequent verifications carried out in accordance with paragraphs 1 and 2 above shall be communicated to the competent authorities of the Community within three months at the latest.The information communicated shall indicate whether the disputed certificate, licence or declaration, applies to the goods actually exported and whether these goods are eligible for export under the arrangements established by this Protocol. The information shall also include, at the request of the Community, copies of all the documentation necessary to fully determine the facts, and in particular the true origin of the goods.Should such verifications reveal systematic irregularities in the use of declarations of origin, the Community may subject imports of the products in question to the provisions of Article 2 (1) of this Appendix.5. For the purpose of subsequent verification of certificates of origin, copies of the certificates as well as any export documents referring to them shall be kept for at least three years by the competent Hungarian authorities.6. Recourse to the random verification procedure specified in this Article must not constitute an obstacle to the release for home use of the products in question.Article 221. Where the verification procedure referred to in Article 21 or where information available to the competent authorities of te Community or of Hungary indicates or appears to indicate that the provisions of this Protocol are being circumvented or infringed, the two Parties shall cooperate closely and with the appropriate urgency in order to prevent any such circumvention or infringement.2. To this end, the competent authorities of Hungary shall, on their own initiative or at the request of the Community, carry out appropriate inquiries, or arrange for such inquiries to be carried out, concerning operations which are, or appear to the Community to be, in circumvention or infringement of this Protocol. Hungary shall communicate the results of these inquiries to the Community, including any other pertinent information enabling the cause of the circumvention or infringement, including the true origin of the goods, to be determined.3. By agreement between the Community and Hungary, officials designated by the Community may be present at the inquiries referred to in paragraph 2 above.4. In pursuance of the cooperation referred to in paragraph 1 above, the competent authorities of the Community and Hungary shall exchange any information considered by either Party to be of use in preventing circumvention or infringement of the provisions of this Protocol. These exchanges may include information on the production of textiles products in Hungary and on the trade in the type of products covered by this Protocol between Hungary and third countries, particularly where the Community has reasonable grounds to consider that the products in question may be in transit across the territory of Hungary prior to their importation into the Community. This information may include at the request of the Community copies of all available relevant