PL
The article presents the impact of European Union law on the development of supra-local self-government structures in Poland. In the literature, it is estimated that the self-governmental reform of 1998 assuming the establishment of self-government voivodships and poviats enabled Poland to effectively join the implementation of regional development policy. The voivodship self-government and poviat became the basis of the institutional infrastructure together with the commune, enabling efficient acquisition of the Structural Funds and the EU Cohesion Fund.