Rozwój polskiego prawa pracy w następstwie integracji z Unią Europejską

This article deals with European integration from the perspective of labour law. When Poland became a member of the European Union (UE), EU legislation has become a part of its national legal order and autonomous source of labour law in Poland. However Europeanization of Polish labour law – its adaptation to EU legislation – was initiated long before the Polish accession to the UE. This process proceeded in four main stages that differ with regard to the type, pace and justification of introduced changes. The analysis undertaken in this article allows us to formulate the conclusion that the real impact of the UE on Polish labour law legislation is determined by preference rule, direct effect rule and the rule of pro-European interpretation of national law as well as by the jurisdiction of the Court of Justice of the European Union to determine a binding interpretation of national law.