The similar systems had been installed earlier at the nuclear icebreaker Sovetsky Soyuz, nuclear containership Sevmorput and nuclear storage ship Imandra. These works are carried out in accordance with the Russian Government decree from March 7, 1997, On ratification of physical protection regulations for nuclear materials, nuclear installations and nuclear materials storage sites and intergovernmental agreements of Russia with Norway, Sweden, Great Britain and USA. The works at the Arctika icebreaker began in December 2002. Company Escort-Centre was the general contractor, while the icebreakers crew adopted the standard system for the marine conditions. The system is vibration-proof and jamproof. The technical assistance was provided by the Swedish Nuclear Inspectorate, the Norwegian Radiation Protection Agency, the UK Ministry of Trade and Industry. Nuclear ice-breaker Yamal is scheduled to obtain this system by September 10th this year. The foreign partners allocated $1.6 mln total to install the system on both nuclear icebreakers.