GR - Greece , Commission of any change in this information . IE - Ireland , IT - Italy, Article 20— a single-digit number identifying quote year, corresponding to the last figure in year e.g . 3 for 1983 , 1. Subsequent verification of certificates of origin or export licences shall be carried out at random , or whenever— a two-digit number running consecutively from 01 to 99 the competent Community authorities have reasonable identifiying the issuing office , doubt as to the authenticity of the certificate or licence or as to the accuracy of the information regarding the products in— a five-digit number running consecutively from 00001 to question . 99999 allocated to the country of destination . 2. In such cases the competent authorities in the Community shall return the certificate of origin or export Article 1S licence or a copy thereof to the competent governmental authority in the Republic of Korea giving, whereThe export licence and certificate or origin may be issued appropriate , the reasons of form or substance for an inquiry .after the shipment of the products to which they relate . In If the invoice has been submitted , such invoice or a copysuch cases they shall bear either the endorsement 'delivrée a thereof shall be attached to the certificate or licence or itsposteriori' or the endorsement 'issued retrospectively'. copy . The authorities shall also forward any information