During the Soviet time, each of the republics of the Soviet Union, including the Russian SFSR, had its own legislative documents dealing with classification of inhabited localities. After the dissolution of the Soviet Union, the task of developing and maintaining such classification in Russia was delegated to the federal subjects. While currently there are certain peculiarities to classifications used in many federal subjects, they are all still largely based on the system used in the RSFSR. In all federal subjects, the inhabited localities are classified into two major categories: urban and rural. Further divisions of these categories vary slightly from one federal subject to another, but they all follow common trends described below.
In 1957, the procedures for categorizing urban-type settlements were further refined.
Multiple types of rural localities exist, some common through the whole territory of Russia, some specific to certain federal subjects. The most common types include: