Interactive diagram on the direct effect of primary Community law, that is, on the possibility for private parties before national courts to rely on rights drawn from Community treaties in particular.

Interactive diagram on the direct effect of secondary Community law, that is, on the possibility for private parties before national courts to rely on rights drawn from regulations, decisions and directives in particular.

Interactive diagram on the sources of European Union law, organised hierarchically in the form of a pyramid of rules, in which each subordinate rule must respect those rules above it. The Community legal order is distinguished by the autonomy of its sources and by the primacy of Community rules over national rules. (Situation before the entry into force of the Lisbon Treaty on 1 December 2009.)