Artikel 4

1. The competent administrations of the countries concerned shall determine by special agreements what premises are needed by the services of the adjoining country within the said zone and the conditions under which the railway administration of the country in whose territory the station is situated shall supply furniture, lighting, heating, cleaning, telephone communications, etc, for the said premises.
2. Any equipment required for the functioning of the services of the adjoining country shall be imported on a temporary basis and re-exported free of all Customs duties and charges, provided that the proper declaration is made. Regulations forbidding or restricting import or export shall not apply to such equipment.