Remotely Piloted Aircraft Systems (RPAS) are widely used in the civil sphere. They offer capabilities predisposed them to be employed by state services in ensuring security and public order, as well as in commercial activities. It should be assumed that the number of RPAS users will grow in geometric progression. It also applies to the European Union, where the market of RPAS is considered to be one of the most prospective in the development of small and medium-sized enterprises. This situation generates specific problems that should be solved in order to develop the RPAS' market without limitations as a part of the European aviation system. The final state should be full integration of RPAS into the European aviation system, to conduct flight operations in non-segregated airspace without additional administrative constraints. Some efforts have been made to achieve this ambitious goal in the European Union. The paper summarises the current status of the legal framework and projects connected with the integration of RPAS into the European airspace. It is mainly based on qualitative analysis of source materials. The purpose of the paper is to identify key problem areas, the solution of which will contribute to the integration of RPAS into the European civil aviation system. An analysis of normative