This paper will present some part of the theoretical background of the project and shows how regulation is a multiple process grounded in various sources (transnational, national, local), goals and ways, relating to diversity of agents involved, their positions, interests and strategies. The existence of several levels, poles and means and the type of connections which are established between them, show that the regulation of the educational system is not a unique, automatic and predictable procedure but a composite one which is the result more of a regulation of the regulations than from the direct control of applying a rule over action of the "regulated". For that reason, rather than speaking of regulation it would be better to talk about "multiregulation" once the actions which guarantee the working of the education system are decided by a stream of regulator mechanisms which often only serve to nullify themselves, or at least, put into perspective the casual connection between principles, goals, procedures and results, at the different levels.