This paper aims to analyse a specific dimension of the progressive transformation of the territorial/nation-state law by using the particular lens of cross-border cooperation as regulated under EU law.
In order to do so, I have structured the article into two parts: the first part recalls the main features of the so-called transnational law (polycentrism, non-exclusivity of state actors in the law-making process and in the implementation of legal rules, openness, emergence of hybrid legal phenomena which do not belong - exclusively at least - to the domain of hard or soft law), while the second part analyses the legal framework of cross-border cooperation, trying to locate in this ambit those characteristics of transnational law identified in the first part.