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 icebreaker’s 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. The Murmansk Shipping Company, which manages the state-owned nuclear ice-breakers, is planning to reach agreement to install the similar systems on the other ships of the Russia nuclear civil fleet.