background. This copy shall be clearly marked as 'original'and the other copies as 'copy'. Only the original shall be accepted by the competent authorities in the Community as being valid for the purposes of export to the Community in accordance with the arrangements established by this Agreement.2. Each document shall bear a standardized serial number, whether or not printed, by which it can be identified.This number shall be composed of the following elements:- two letters identifying Singapore as follows: SG,- two letters identifying countries of destination as follows:BL : BeneluxDE : Federal Republic of GermanyDK : DenmarkES : SpainFR : FranceGB : United KingdomGR : GreeceIE : IrelandIT : ItalyPT : Portugal- a one-digit number identifying quota year, corresponding to the last figure in year, e.g. 7 for 1987,- a two-digit number running consecutively 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 14The export certificate 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 151. In the event of theft, loss or destruction of an export certificate 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 so issued shall bear the endorsement 'duplicata'.2. The duplicate must bear the date of the original export certificate or certificate of origin.TITLE VADMINISTRATIVE COOPERATIONArticle 16The Community and Singapore 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 17In order to ensure that the Agreement is properly applied, the Community and Singapore shall assist each other in checking the authenticity and accuracy of export certificates and certificates of origin issued or declarations made under this Protocol.Article 18Singapore shall send the Commission of the European Communities the names and addresses of the governmental authorities competent for the issue and verification of export certificates and certificates of origin together with specimens of the stamps used by these authorities. Singapore shall also notify the Commission of any change in this information.Article 191. Subsequent verification of certificates of origin or export certificates shall be carried out at random, or whenever the competent Community authorities have reasonable doubt as to the authenticity of the certificate 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 certificate or a copy thereof to the competent governmental authority in Singapore 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 copies thereof. The authorities shall also forward any information that has been obtained suggesting that the particulars given on the said certificates 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 together with any other pertinent information.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 Singapore.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 201. Where the verification procedure referred to in Article 19 or where information available to the Community or to Singapore indicates or appears to indicate that the provisionsof this Agreement are being contravened, both parties shall cooperate closely and with appropriate urgency to prevent such contravention.2. To this end, appropriate inquiries shall be carried out, if necessary, concerning operations which are or appear to be in contravention of the Agreement. The results of these inquiries shall be communicated together with other pertinent information.3. By agreement between the Community and Singapore, officials designated by the Community may be present at the enquiries referred to in paragraph 2.4. In pursuance of the cooperation referred to paragraph 1, Singapore and the Community shall exchange anyinformation 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 Singapore and on trade in textile products of a kind covered by this Agreement between Singapore 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 Singapore 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