Norm individuation seems to be one of the most relevant topics in legal theory. It suffices to consider that without an individuation basis (individuators for the object «norm») legal science cannot, in a consistent way, classify norms or detect conflicts among them. It is of the utmost importance for legal science, then, to adopt criteria of individuation and, in such a way, to define which are the necessary conditions to have, within the legal materials expressed by normative authorities, a (complete) norm. As a task leading to establish the unit of a normative system, the selection of norm individuators is not exempt of consequences in our understanding of law. Accordingly, implications of individuation such as correlativity between agents, generality of norms and their common prescriptiveness have also to be evaluated whenever legal science faces the problem of composing the unit «norm».
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