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1. Requests for extension of validity of temporary importation papers shall be presented to the competent Customs authorities before the expiry of the period of validity of these papers, unless this is rendered impossible by force majeure. If the temporary importation paper has been issued by an authorized association, the request for extension shall be made by the association which guarantees the papers.
2. Extensions of time necessary for the re-exportation of vehicles or component parts imported temporarily shall be granted when the persons concerned can establish to the satisfaction of the Customs authorities that they are prevented by force majeure from re-exporting the said vehicles or component parts within the time allowed.
3. The validity of temporary importation papers can only be extended once for not more than one year. After this period, a new carnet must be issued and delivered in replacement of the former carnet.