The university is considered to be an important factor in the economic, cultural, social, scientific, and artistic development of society, as it trains highly qualified professionals. Precisely for that reason, the quality of the university or its components; faculties, academies, and university departments is of the utmost importance. Regulatory agencies are those that regulate and supervise events in one service. The aim of this final paper was to investigate how regulatory agencies that are in charge of quality assurance in the field of science and higher education raise the quality of universities. The reaccreditation procedure is considered to be one of the most important mechanisms in ensuring and raising the quality of universities, so the secondary goal of this paper was to investigate the results of reaccreditation procedures at the constituent parts of the University of Split. For this purpose, the quality assessments in the five areas of action of higher education institutions that were obtained in the process of rescheduling of the University of Split between 2018 and 2021 were analyzed. The results of the research indicate that the quality level in the analyzed components of the University of Split is not at the level that is considered to be a ''high level of quality'' according to European and national criteria.