Public administration is a narrower term of public administration and it is one of its components. The legal system encompasses elements of the administrative organization represented by the system of human cooperation. Since its inception, the state administration has been in charge of law enforcement, adoption of regulations, performing administrative and inspection supervision and other administrative and professional tasks prescribed legal framework. By joining the European Union, the Republic of Croatia had to adjust its legal legislation and action according to the recommendations of the European Union in order to achieve convergence and reach the standards of other EU member states. Business of state administration is the implementation of state policy, direct implementation of laws, inspection supervision, administrative supervision and other administrative and professional affairs.To perform these activities government bodies are founded and established. This includes ministries and state administrative organizations. The State Inspectorate is a state administration body that has taken over the performance of inspection activities from several administrative areas. The task of inspection supervision is to effectively prevent and eliminate certain illegalities in the work, on the basis of which inspectors generally act ex officio. This paper presents the results of activities and innovations in the organizational structure of the state administration with special emphasis on the State Inspectorate. Due to entering the European Union, the state administration and the state inspectorate are undergoing processes of reform and modernization.