In this article, the author conducts a study that contributes to the analysis of the limits of the permissibility of the implementation of international law on the basis of constitutions and charters of subjects of the Russian Federation. The subject of the study is the legal norms contained in the constitutions and charters of the subjects of the Russian Federation, as well as the practice of their implementation.The object of the study is the social relations that develop in the process of implementing the norms of international law in the constitutions and charters of subjects.The purpose of the study is to improve the legal norms regulating the limits of the permissibility of the implementation of international law in the constitutions and charters of the subjects of the Russian Federation. The methodological basis was formed by the methods of scientific cognition, special attention is paid to the dialectical method of state-legal and social phenomena in interaction with general scientific and private scientific methods. The result of the work is the development of a classification of constitutions and charters of the subjects of the Russian Federation, contributing to the definition of the limits of the permissibility of the implementation of international law.The presented classification will make it possible to improve the legal status of a person and a citizen faster, to exercise his rights in the context of the implementation of a completed order for social justice, taking into account the priority of national legislation over international norms. This is one of the directions set out in the Messages of the President of the Russian Federation to the Federal Assembly in 2019-2020. The proposed classification option would allow.it is faster to implement, in practical terms, the breakthrough development of the state, which is based on the constitutional idea of man as the highest value of the state, and in the science of constitutional law to provide an opportunity to implement the norms of international law in the constitutions and charters of the subjects of the Russian Federation, taking into account the limits of admissibility.