Article 11
1. The document of origin shall be valid for three months from its actual date of issue but in any event not later than 31 December of the year of its issue. The original of the document of origin shall be submitted, together with a copy, to the competent authorities at the time when the application for the corresponding import licence is submitted. However, from 1 October, documents of origin valid from 1 January until 31 March of the following year for quantities within the quota for that year may be issued on condition that they are not used in applications for import licences until 1 January of that year. 2. The original shall be retained by the authority issuing the import licence. However, where the application for an import licence relates to only part of the quantity appearing on the document of origin, the issuing authority shall state on the latter the quantity in respect of which it has been used and, after having affixed its stamp thereto, shall pass it to the party concerned.