It's also responsible for the supervision of the decentralized departments of the central government in the regions and impulse and coordination of the Conference of Presidents (the main forum of collaboration between the Prime Minister and the regional leaders), as well as the Presidency of the Council of Official Languages in the General Administration of the State.

The need to create a department focused on the coordination of the different state administrations appeared after the approval of the Constitution, which established a decentralized state composed of different autonomous communities.

Given this, the Ministry of Territorial Administration was created in 1979 and was in force until the end of 1986.

In 2016, with the economical improvement, the Secretariats of State of Public Function and Territorial Administration were separated again and the latest was integrated with its Ministry in the Ministry of the Presidency.

Briefly, from 2020 to 2021 the Secretariat of State assumed all the competences about civil service.