The office of "Head of Ministry" was created as soon as Malta was granted autonomous government in 1921. The 1921 constitution was suspended twice before being revoked. On the first occasion, the head of ministry and his cabinet were retained. Following the second suspension in 1934, the cabinet was dismissed. The constitution was revoked in 1936 and the post did not exist for as long as Malta was under direct colonial administration. The office was re-established with the grant of self-government in 1947 with the post being renamed as "Prime Minister of Malta". The post was again suppressed when the 1947 constitution was again suspended between 1958 and 1962 but was retained largely unchanged in the 1964 independence constitution and the subsequent amendments of 1974 which transformed the form of government into a republic.
Constitutional functions
The president of Malta, who nominally heads the executive branch, appoints as Prime Minister the member of parliament who, in the opinion of the president, is best able to command a majority of the members of the House of Representatives. The prime minister advises the president on the appointment of the other ministers. The prime minister is constitutionally obliged to keep the president fully informed on the general conduct of the government. Whenever the prime minister is away from Malta, the president may authorise any other member of the Cabinet to perform those functions and that member may perform those functions temporarily. It is usually the deputy prime minister who fills in this role as acting prime minister. Constitutionally, the prime minister is also responsible for appointing permanent secretaries as well as tender advice to the president on the appointment of members to the judiciary and constitutional bodies.
As minister in his own right, the Prime Minister is responsible for a number of departments of government. The Office of the Prime Minister has been based at the Auberge de Castille in Vallettasince 1972, playing a central role in decision-making apart from being the administrative headquarters of the government. The OPM's mission is to support the prime minister in providing leadership and direction for a stable and effective government. The core departments of OPM include the Cabinet Secretariat, the Management and Personnel Office and the Department of Information.
Official residences
is the official residence of the prime minister, while the Girgenti Palace is the summer residence. They are predominantly used for public ceremonies, including receiving notable people, and are considered symbolic buildings.