The federal subjects of Russia, also referred to as the subjects of the Russian Federation, or simply as the subjects of the federation, are the constituent entities of Russia, its top-level political divisions according to the Constitution of Russia. Since March 18, 2014, the Russian Federation consists of eighty-five federal subjects.
In 1992, the Russian regions signed the Federation Treaty, establishing and regulating the current inner composition of Russia, based on division of authorities and powers among Russian government bodies and government bodies of constituent entities. The Federation Treaty was included in the text of the 1978 Constitution of the RSFSR (Russian Soviet Federative Socialist Republic). In 1993, when the current Constitution of Russia was adopted, there were 89 federal subjects listed. By 2008, the number of federal subjects had been decreased to 83 because of several mergers. In 2014, Sevastopol and the Republic of Crimea became the 84th and 85th federal subjects of Russia.
According to the Russian Constitution, the Russian Federation consists of republics, krais, oblasts, cities of federal importance, an autonomous oblast, and autonomous okrugs, all of which are equal subjects of the Russian Federation. Three Russian cities of federal importance have a status of both city and separated federal subject.
Every subject of the Russian Federation has its own president/governor/head (executive branch), regional parliament (legislative branch) and regional constitutional/charter court (higher judicial branch in a region). Federal subjects shall have their own constitution/charter and legislation (adopted by regional parliaments). Subjects shall have equal rights as constituent entities of the Russian Federation. All federal subjects of the Russian Federation shall be equal with one another in relations with federal government bodies. The federal subjects have equal representation — two delegates each — in the Federation Council, the upper house of the Federal Assembly. They do, however, differ in the degree of autonomy they enjoy (asymmetric federalism).