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1. The facilities mentioned in article 3 shall be granted on the following conditions:
(a) The material must be despatched either by an official tourist agency or by a national tourist publicity agency affiliated therewith. Proof shall be furnished by presenting to the Customs authorities of the country of import a declaration made out in accordance with the model in the annex to this Protocol by the despatching agency;
(b) The material must be imported for and on the responsibility of either the accredited representative of the official national tourist agency of the country of despatch or of the correspondent appointed by the aforesaid agency and approved by the Customs authorities of the country of import. The responsibility of the accredited representative of1) [Red: Lees: “or”.]approved correspondent includes in particular the payment of the import duties and taxes, which will be chargeable if the conditions laid down in this Protocol are not fulfilled;
(c) The material imported must be re-exported without alteration by the importing agency. If the material granted temporary free admission is destroyed in accordance with the conditions laid down by the Customs authorities, the importer shall nevertheless be freed from the obligation to re-export.
2. The privilege of temporary free admission shall be granted for a period of at least twelve months.