Paradigm Shift in the Application of Substantive Administrative Law in Connection with European Integration

This paper examines the nature of the application of substantive administrative law in both sensu stricto and sensu largo. The acceleration of civilizational change associated with Poland’s accession to the European Union has led to a growing significance – both in quantitative and qualitative terms – of the second model of law application, namely, the category of administrative cases resolved in this broader manner. Both senses of law application are analysed through the lens of the substantive model of law application, thus illustrating the differences between them and their implications for administrative court proceedings. These distinctions will be reflected in the content of complaints submitted to administrative courts, the applicable time limits for filing such complaints, and the content of judicial rulings, which take into account the legal character of these actions and the model of law application under which they are issued. The aim of the study will be to establish the similarities and differences between both models, and thus to demonstrate that the overlap of legislative changes with European integration was related only to the change in the legal form and the procedural simplification of the process of adjudicating in individual cases while maintaining the essence of public subjective rights. The dogmatic-legal method was used in the study.