1 Proceedings for the annulment of a measure of a general nature or part thereof under the Administrative Procedure Code Abstract The subject of the present thesis is the proceedings for the annulment of a measure of a general nature or its part according to § 101a et seq. of the Administrative Procedure Code. Although this procedure has been a part of the legal system since 2005, it is currently very topical, also in view of the numerous measures of a general nature issued and reviewed by the courts in connection with the occurrence of the coronavirus pandemic. The aim of this thesis is to describe the procedure for the annulment of a measure of a general nature or a part thereof in the light of the current state of legislation and the development of judicial case law. The interpretation is supplemented by an assessment of the legal regulation and the conclusions of the case law, through which the individual aspects of the measure of a general nature can be analysed in their interconnected context. The main core of the work, which is the judicial proceedings for the annulment of a measure of a general nature or part thereof under the Administrative Procedure Code, is preceded by a general interpretation of the concept of a measure of a general nature, without the definition of which the thesis could not be...