This chapter outlines the European Union (EU) actors and procedures involved. It discusses why non-compliance, particularly in recent times even with high-ranking decisions and constitutional issues such as the EU's basic values, is a danger for European integration. The main actors in implementing EU law are the member state governments and, as far as the adaptation of laws is concerned, the national parliaments. The Solvit system is particularly interesting from a social science perspective because it creates a cooperative arrangement between the Commission and national public administrations in a process which is neither strictly intergovernmental nor supranational. A primary objective of Solvit is to identify misapplication of internal market law by public authorities in a timely manner, and, hopefully to avoid legal proceedings. A public campaign should be put in place throughout the EU promoting compliance and the basic, fundamental values involved in European integration.