To accomplish its administrative tasks the Central Committee is provided with an extensive bureaucratic structure that in many instances parallels the organization of the government ministries. A chancellery office, headed by a chief and three deputies, coordinates the committee's overall administrative activities. Party work is organized under three directorates, each headed by a supervisory secretary, and a number of administrative sections and functional commissions. The directorates, designated as international affairs and propaganda, party organization, and press and cultural affairs, supervise and direct the work of the administrative sections. Not all of these sections are listed in the party statutes or by the party press. A partial listing includes sections for the economy, local administration, propaganda, press, international affairs, party organs and personnel, national minorities, and state security. In addition to the directorates and administrative sections there were, in 1970, eight formally established commissions directly tied to the Central Committee. These were listed as the commissions for agriculture and forestry; economic problems; ideological and cultural-educational problems; international relations; organizational problems and internal party activity; training of cadres, education, and science; development of the social and state system; and social questions, public health, and living standards. Two party training institutions, the Stefan Gheorghiu Academy of Social-Political Education and the Training of Leading Cadres and the Institute of Historical and Social-Political Studies, operate under the direct supervision of the Central Committee. Located in Bucharest, both of these institutions are designed to train and indoctrinate key bureaucratic personnel. The Central Committee also maintains a museum of party history in Bucharest. In charge of all of the political machinery of the PCR, the Standing Presidium of the Central Committee is the party's center for decisionmaking and policy control and, as such, is the most powerful body in the country. There were, at the beginning of 1972, four party leaders who held positions concurrently on the Standing Presidium, the Executive Committee, and the Secretariat: Ceausescu, Manea Manescu, Paul Niculescu-Mizil, and Gheorghe Pana. Political observers considered these men to be the most powerful in the party and, hence, the nation. All of the nine members of the Standing Presidium are also members of the Executive Committee.