On March 29, 2017, as a consequence of the referendum of June 23,
2016, the British Prime Minister, Theresa May, notifi ed the European
Council the intention to leave the EU in accordance with art. 50 of the
Treaty on European Union (TEU). This means that within two years the
United Kingdom will probably leave the EU.
The phenomenon that we have dealt with since the beginning of the
integration process within the European Communities (and later the EU)
but which has more and more infl uence on the shape and functioning
of the European Union for more or less decades, is the differentiation of
integration in the EU between its member states.
The UK’s exit from the EU and the progressive differentiation of integration
within this organization are two extremely important processes
that will strongly affect the shape and functioning of the EU. The main
objective of this study is to try to answer the question of how UK’s exit from
the EU will affect the process of differentiation integration in the EU. The
starting point is an outline of the position of the United Kingdom in the
EU in the context of differentiation of integration in the Union, i.e. identifi
cation of the most important exclusions of this state from the EU acquis
communautaire (mainly the EU primary law). In the third part of the article,
an attempt will be made to indicate the consequences of the exit of United
Kingdom from the EU for deepening differences in the integration of the
EU member states. The summary contains the main conclusions.