ABSTRACT
The implementation of European Community (EC) administrative law is fundamentally a matter for the Member States. The administrative role of the EC institutions is in principle limited to supervising the Member States' duties. Nevertheless, a large and steadily growing number of instances of implementational competence have been transferred to the EC institutions, implementation of law deriving both from the Treaties and from secondary legal acts. Under the category of "tertiary ruke-making", one can situate law which is promulgated on the basis of secondary legal acts, which in their turn are based on competences in the Treaties. The legal acts which entrust direct implementation tasks to the Commission have now grown so numerous, and the terms of such assignment vary so widely, that a classification scheme would appear useful. Decentralized forms certainly stand in the front line of control over observance of Community law in administration.
