Much is being said, lately, regarding the effectiveness of EU policies, often arguing that their implementation is too poor or uneven throughout the Union. Enforcing EU laws is crucial for their successful implementation; however, how should enforcement be organised? At which level, by what type of institutions and what implications does the choice for a particular institutional strategy have in terms of legitimacy, organization of controls and operation of enforcement? The European Commission itself is committed to making EU laws more effective and improving overall compliance with them. What is most relevant is the ongoing changes in the governance of EU law enforcement, according to which direct enforcement powers, long been regarded an exclusive competence of the EU Member States, are increasingly being uplifted at the supranational level, both by providing EU actors with direct powers and through unprecedented shared powers with the lower administrative levels.