(a) All essential parts of a deactivated firearm are to be rendered permanently inoperable and incapable of removal, replacement or modification in a manner that would permit the firearm to be reactivated in any way; (b) Arrangements are to be made for deactivation measures to be verified, where appropriate, by a competent authority to ensure that the modifications made to a firearm render it permanently inoperable; (c) Verification by a competent authority is to include a certificate or record attesting to the deactivation of the firearm or a clearly visible mark to that effect stamped on the firearm. Article 10. General requirements for export, import and transit licensing or authorization systems 1. Each State Party shall establish or maintain an effective system of export and import licensing or authorization, as well as of measures on international transit, for the transfer of firearms, their parts and components and ammunition. 2. Before issuing export licences or authorizations for shipments of firearms, their parts and components and ammunition, each State Party shall verify: (a) That the importing States have issued import licences or authorizations; and (b) That, without prejudice to bilateral or multilateral agreements or arrangements favouring landlocked States, the transit States have, at a minimum, given notice in writing, prior to shipment, that they have no objection to the transit. 3. The export and import licence or authorization and accompanying documentation together shall contain information that, at a minimum, shall include the place and the date of issuance, the date of expiration, the country of export, the country of import, the final recipient, a description and the quantity of the firearms, their parts and components and ammunition and, whenever there is transit, the countries of transit. The information contained in the import licence must be provided in advance to the transit States. 4. The importing State Party shall, upon request, inform the exporting State Party of the receipt of the dispatched shipment of firearms, their parts and components or ammunition. 5. Each State Party shall, within available means, take such measures as maybe necessary to ensure that licensing or authorization procedures are secure 76