Connection of the law of the Slovak Republic to the law of the European Union is related to a large number of new conceptual issues of legislative and procedural character, that are often connected with their significant law enforcement connotations. In case of a regulation it is necessary to bear in mind specific character of this legal act. The Regulation is directly applicable in all Member States of the European Union. It is forbidden to transpose it into the national law. According to Court of Justice of the European Union transposition of content of regulation into the domestic law of a Member State is permitted only exceptionally in the interests of clarity, homogeneity, and effective applicability of legislation, provided, that in this way there is no blurring of the Union origin, nature and legal effects of regulation. It is also permissible to provide implementation of regulation by setting of sanctions or establishing the competence of national authorities.