The zone covers nuclear facilities, radioactive waste storage sites, sources of radiation and nuclear material storage sites at Russia's 10 active nuclear stations, according to the decree.
Nuclear facilities at Russia's first floating nuclear power station Akademik Lomonosov are also classified as subject to the new safe zone established by the decree.
Nuclear facilities of the Novovoronezh Experimental and Demonstration Decommissioning Center as well as those of the Aleksandrov Scientific Research Technological Institute in the Leningrad Region and the Novosibirsk Chemical Concentrates Plant are also subjects to the order.
On January 1 a law on boosting counterterror measures at nuclear facilities entered into force in Russia. According to the law, safe zones with special legal regime will be established around them which implies entry restrictions for unauthorized individuals.