The present master paper investigates the challenges which are met while trying to implement the provisions of the directives on professional qualifications into national law. Despite the fact that the directives regulating the recognition of professional qualifications have already been implemented into the national law of the Republic of Lithuania after the new European Parliament and Council directive 2005/36/EC codifying all the existed directives on the recognition of professional qualifications, has been adopted, the competent authorities face new challenges trying to implement the provisions of new directives. Due to this fact, several stages of the implementation of the directives of European Union are distinguished.: the obligations Lithuania had to fulfil before the accession to EU and after the new Directive 2005/36/EC was adopted. The main objective of this paper is to analyse problematical issues regarding the transposition of directives on recognition of regulated professional qualifications into national law. The attempt was made to disclose the main features of the systems regarding recognition of regulated professional qualifications. A great deal of attention is alloted to the analysis of the process of recognition, the presumptions and the development of General system of recognition and Sectoral directives. The main legal documents on professional qualifications as well as provisions of the new law are widely discussed. Currently more and more emphasis... [to full text]