The topic of this paper is the Regulatory impact assessment in Croatia. At the beginning, we will explore the history of the creation of the instrument itself and its further development in the world, we will talk in more detail about the progressive stages of the introduction of the RIA (eng. Regulatory impact assessment) procedure in our country. Furthermore, we will present the definition and objectives of the RIA in Croatia and describe in more detail the procedure itself, which consists of two steps, a preliminary assessment and an impact assessment. Next, we will describe the exceptions and cases when ex-post evaluation is performed to illustrate the evaluation methodology. In the sixth chapter, we will talk about the development of the legislative and strategic framework and the two Strategies of the Government of the Republic of Croatia on regulatory impact assessment. Finally, we will investigate how successful the execution of legislative activity plans was in the period from 2013. to 2022., and what shortcomings of the system were noted and where there is room for its further improvement.