units, the Ministry of State Treasury was established, creation the Office of the Committee for European Integration in order to perform tasks related to handling the Committee of European Integration, separation of the Office of State Protection from the Ministry of Internal Affairs, which was then transferred under the direst supervision of the Prime Minister, under provisions taking effect on 1 January 1997: the Ministry of Finance gained a new legal basis, in place of the Ministry of Industry and Trade and the Ministry of Economic Cooperation Abroad, and after separating out part of the tasks of the liquidated Office of Central Planning, the Ministry of Economy was established, in place of the Ministry of Internal Affairs, and after separating out part of the tasks of the liquidated Office of the Council of Ministers and the liquidated Ministry of Spatial Planning and Construction (part of its tasks were also taken over by two newly created central offices: the Central Office of Geodesy and Cartography and the Office of Housing and Urban Development), the Ministry of the Interior and Administration was established, in place of the Office of Central Planning (part of its tasks were taken over the newly established Ministry of Economy) the Government Center of Strategic Studies was established, in place of the Office of the Council of Ministers (part of its tasks were taken over by the newly created Ministry of the Interior and Administration) the Chancellery of the Prime Minister (the structure did not formally received the status of a ministry, but secretaries and undersecretaries of state are appointed in it and its statute is given in accordance with the rules of the organization of ministries). New rules regarding the organization of government administration were introduced by the act of 8 August 1996 on the Council of Ministers and the act of 4 August 1997 on the departments of government administration. From that time, a ministry is formed by the means of a decree of the Council of Ministers. The detailed scope of a minister's activities are established by means of a decree of the Prime Minister, on the basis of which that ministers receive the authority to head individual departments (these provisions are also applied to committee chairmen who are part of the government). The statute of a ministry is granted by order (until 1 January, 2002 by decree) of the Prime Minister. Ministries in 1999