EN
The article presents the impact of European Union law on civil procedural law of the Member States, as exemplified by Polish law. The author distinguishes between three levels of such influence, i.e. the level of respect for EU primary law, the level on which EU legislation in procedural matters functions together with national civil procedural law and, finally, the level of implementation of EU law in the context of national procedural law. Each level is illustrated by different practical examples of how civil procedural law is established and applied in Poland. The author concludes that the impact of EU law on domestic civil procedural law is one of the main challenges faced today by civil procedural law.