The aim of this study is to examine how Sweden has implemented directive 2006/123/EC of the European Parliament and of the council of 12 December 2006 on services in the internal market, in the framework of the member states procedural- and institutional autonomy. The study will focus on the contributions to the Swedish law in the form of expressions of the principle of good administration, as a result of the implementation of the directive. The expressions of the principle of good administration were found in the main law "Act (2009:1079) on services in the internal market" where the majority of the directive's provisions were implemented in Swedish law. The study focuses on two expressions of the principle that simultaneously are news in Swedish law induced by the implementation of The Services Directive: the principle of necessity and liaison points of the authorities. With basis in the study of the implementation of The Services Directive as an EU secondary law act in Swedish law and the new expressions of the principle of good administration in Swedish law to fulfill the directive - the purpose of the study will include an analysis of the EU-law's impact on Swedish Administrative Law with focus on the legislation's format. The analysis will, among other things, refer to the different administrative law traditions in the two legal systems regarding the status of general principles of law, mainly the principle of good administration, in the field of administrative law.