Formal communications and transmission of decisions between the Gibraltar authorities, including the judicial authorities, and those of the Member States of the European Union (except the United Kingdom) for the purposes of this Decision shall be carried out in accordance with the procedure provided for in the arrangements relating to the Gibraltar authorities in the context of EU and EC instruments and related treaties (see Annex III to this Decision), concluded between Spain and the United Kingdom on 19 April 2000 and communicated to the Member States and the institutions of the European Union.