[1] The AJEMA calls the meetings and coordinates the efforts of the Naval Staff (EMA), the main auxiliary body of the AJEMA, which assists him in the exercise of its competences and in the responsibilities assigned to it over the organization of the Navy, preparation of the troops and administration of the assigned resources.

[3] By Royal decree of 30 March 1899, the Undersecretary of the Navy was re-created and assumed the competences of the Military Secretariat and the Naval Staff, passing its owner to be called Under secretary of the Navy and Chief of the Central Naval Staff.

[6] By the Law of 7 January 1908, which reforms the Institutes, agencies and services of the Navy, the EMCA was once again created.

The AJEMA was granted the chair of the Board that informed the Minister of the Navy of naval matters, except if he did not possess the rank of Vice Admiral, which was then chaired by the Vice Admiral Chief of the Central Jurisdiction of the Navy and the AJEMA acted as a member.

On 20 October 1927, the EMCA is replaced by the Directorate-General of Campaign and Services of the Naval Staff (DGCSEM) in front of which there was a Vice Admiral with the title of Director-General of the same body.