L 30/16 EN Official Journal of the European Union 31.1.2019 2. An authorisation for export granted in accordance with Article 12 or with Article 17 implies an authorisation for the exporter to supply technical assistance to the end-user to the extent that such assistance is necessary for the installation, operation, maintenance or repair of those goods whose export is authorised. 3. Authorisations may be issued by electronic means. The specific procedures shall be established on a national basis. Member States availing themselves of this option shall inform the Commission. 4. Authorisations for export, import, transit, the supply of technical assistance or the supply of brokering services shall be subject to any requirements and conditions the competent authority deems appropriate. 5. The competent authorities, acting in accordance with this Regulation, may refuse to grant an authorisation and may annul, suspend, modify or revoke an authorisation which they have already granted. Article 22 Customs formalities 1. When completing customs formalities, the exporter or importer shall submit the duly completed form set out in Annex VII as proof that the necessary authorisation for the export or import concerned has been obtained. If the document is not filled out in an official language of the Member State where the customs formalities are being completed, the exporter or importer may be required to provide a translation into such official language. 2. If a customs declaration is made concerning goods listed in Annex II, III or IV and it is confirmed that no authoris­ ation has been granted pursuant to this Regulation for the intended export or import, the customs authorities shall detain the goods declared and shall make the exporter or importer aware of the possibility to apply for an authorisation pursuant to this Regulation. If no application for an authorisation is made within six months of the detention, or if the competent authority dismisses such an application, the customs authorities shall dispose of the detained goods in accordance with applicable national law. Article 23 Notification and consultation requirement 1. A Member State shall notify the other Member States and the Commission if its competent authorities, as listed in Annex I, take a decision dismissing an application for an authorisation under this Regulation or if they annul an author­ isation they have granted. Such notification shall be made not later than 30 days following the date of the decision or annulment. 2. The competent authority shall, through diplomatic channels where required or appropriate, consult the authority or authorities which, in the preceding three years, dismissed an application for authorisation of an export, a transit, the supply of technical assistance to a person, entity or body in a third country or the supply of brokering services under this Regulation, if it receives an application concerning an export, a transit, the supply of technical assistance to a person, entity or body in a third country or the supply of brokering services involving an essentially identical transaction referred to in such earlier application and considers that an authorisation should, nevertheless, be granted. 3. If, after the consultations referred to in paragraph 2, the competent authority decides to grant an authorisation, the relevant Member State shall immediately inform the other Member States and the Commission of its decision and explain the reasons for its decision, submitting supporting information as appropriate. 4. Where a refusal to grant an authorisation is based on a national prohibition in accordance with Article 14(1) or Article 15(4), it shall not constitute a decision dismissing an application within the meaning of paragraph 1 of this Article. 5. All notifications required under this Article shall be made via a secure and encrypted system for exchange of information. CHAPTER VI GENERAL AND FINAL PROVISIONS Article 24 Amendment of Annexes The Commission is empowered to adopt delegated acts in accordance with Article 29, to amend Annexes I, II, III, IV, V, VI, VII, VIII and IX. The data in Annex I regarding competent authorities of the Member States shall be amended on the basis of information supplied by the Member States.