The idea that bureaucracy is a «rational» and «depoliticized» instrument in the conduct of public affairs, has recently come under severe criticism. Assuming the inevitable trend towards «politicization», modern bureaucracies can possibly be classified info four different categories, i.e.: «De-politicized», «Semi-politicized», «Committed» and «Fully-politicized». Such a classification is based on the operationalization of certain indices on four different dimensions viz. a) Degree of Bureaucracy's Influence in Decision-making; b) Degree of its Involvement in Political Activities; c) Degree of Political Interference in its Work and d) its Image in the Public. The extent of «politicization» of any bureaucratic system and its actual deviation from the defined categories will, however, depend upon the available pattern of the characteristic indices in that particular society. Notwithstanding certain difficulties in the operationalization of such indices, the model should be helpful in providing a framework for a comparative analysis and measurement of «politicization» of bureaucracies in different political systems.