from 01 to 99 identifying the issuing office, - a five-digit number running consecutively from 00001 to 99999 allocated to the country of destination. Article 15 The export licence and certificate of origin may be issued after the shipment of the products to which they relate. In such cases they shall bear either the endorsement "délivré a posteriori" or the endorsement "Issued retrospectively". Article 16 1. In the event of theft, loss or destruction of an export licence or a certificate of origin, the exporter may apply to the competent governmental authority which issued the document for 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". 2. The duplicate must bear the date of the original export licence or certificate of origin. TITLE V ADMINISTRATIVE COOPERATION Article 17 The Community and Macao shall cooperate closely to implement the provisions of this Agreement. To this end, contacts and exchanges of views (including on technical matters) shall be facilitated by both parties. Article 18 In order to ensure that the Agreement is properly applied, the Community and Macao shall assist each other in checking the authenticity and accuracy of export licences and certificates of origin issued or declarations made under this Protocol. Article 19 Macao shall send the Commission of the European Communities the names and addresses of the governmental authorities competent for the issue and verification of export licences and certificates of origin together with specimens of the stamps used by these authorities. Macao shall also notify the Commission of any change in this information. Article 20 1. 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 accuracy of the information regarding the products in question. 2. In such cases the competent authorities in the Community shall return the certificate of origin or export licence or a copy thereof to the competent governmental authority in Macao giving, where appropriate, the reasons of form or substance for an enquiry. If the invoice has been submitted, such invoice or a copy thereof shall be attached to the certificate or licence or its copy. 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 results of the subsequent verifications carried out in accordance with paragraphs 1 and 2 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 or licence applied to the goods actually exported and whether these goods are eligible for export in accordance with the arrangements established by this Agreement. The information shall also include, at the request of the Community, copies of all documentation necessary to determine the facts fully and in particular the true origin of the goods. 4. 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 two years by the competent governmental authority in Macao. 5. 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 21 1. Where the verification procedure referred to in Article 20 or where information available to the Community or to Macao indicates or appears to indicate that the provisions of this Agreement are being contravened, both parties shall cooperate closely and with appropriate urgency to prevent such contravention. 2. To this end Macao shall on its own initiative or at the request of the Community, carry out appropriate enquiries or arrange for such enquiries to be carried out concerning operations which are, or appear to the Community to be in contravention of this Agreement. Macao shall communicate the results of these enquiries to the Community together with any other pertinent information enabling the true origin of the goods to be determined. 3. By agreement between the competent Community authorities and the competent Macao authorities, officials designated by the Community may be present at the enquiries referred to above. 4. In pursuance of the cooperation referred to in paragraph 1, Macao and the Community shall exchange any information considered by either party to be of use in preventing the contravention of the provisions of the Agreement. These exchanges may include information on textile production in Macao and on trade in textile products of a kind covered by this Agreement between Macao and other countries, particularly where the Community has reasonable grounds to consider that the products in question may be in transit across the territory of Macao and prior to their importation into the Community. This information shall include at the request of the Community copies of all relevant documentation. 5. Where it is established that the provisions of this Agreement have been contravened, Macao and the Community may agree to take such measures as