Direct Effect Revisited

Direct effect is considered an essential characteristic of European Union (EU) law, and its importance within the Union’s legal system is undeniable. Like EU law itself, it is constantly evolving. In terms of its content, the concept has evolved from the rather narrow notion of “conferring rights” to the broader notion of “invocability” for a wide range of purposes, including controlling the use of discretion by Member States. It is a context-related concept. Examining the conditions for direct effect, which have become less strict over time, clarifies that direct effect is a matter of the justiciability of the provisions in question. While individuals often benefit from direct effect, Union law provisions may also impose obligations on them. The most significant exception in this regard is the denial of the horizontal direct effect of directives. In order to overcome this limitation of the effective application of directives, the Court has developed various techniques which, however, pose difficulties for non-specialised legal practice. This article discusses the most important aspects of the evolution of the doctrine of direct effect, including recent developments and ongoing or emerging issues.