Article 13
Direct transport 1. The preferential treatment provided for under this Regulation applies only to products satisfying the requirements of this Regulation, which are transported directly between the Community and Ceuta and Melilla or through the territories of the other countries referred to in Articles 3 and 4. However, products constituting one single consignment may be transported through other territories with, where necessary, transhipment or temporary warehousing in those territories, provided that they remain under the surveillance of the customs authorities in the country of transit or warehousing and do not undergo operations other than unloading, reloading or any other operation intended to preserve them in good condition. Originating products may be transported by pipeline across territories other than those referred to in the first subparagraph. 2. Evidence that the conditions referred to in paragraph 1 have been fulfilled shall be supplied to the competent customs authorities in the Community or Ceuta and Melilla by the production of: (a) a single transport document covering the passage through the country of transit; or (b) a certificate issued by the customs authorities of the country of transit: (i) giving an exact description of the products; (ii) stating the dates of unloading and reloading of the products and, where applicable, an indication of the ships, or the other means of transport used; and (iii) certifying the conditions under which the products remained in the transit-country; or (c) failing these, any substantiating documents.