Regulatory framework for decommissioning of nuclear facilities in Japan

Operation license of Kori Unit 1 was expired in 2007 after 30 years of design life and Kori Unit 1 received a 10 years of 1st continued operation from the government until June 2017. In June 2015, Kori Unit 1 was decided to be permanently shutdown without applying its 2nd continued operation and becomes the first NPP be decommissioned in Korea. KHNP, the operating licensee of Kori unit 1, is now preparing final decommissioning plan (FDP) for decommissioning approval by June 2022, within 5 years from its permanent shutdown, according to the recently revised Nuclear Safety Legislations. Regulatory framework for decommissioning of nuclear facilities in Japan was introduced in this study. Analysis of Japanese regulatory system and review standard for decommissioning of nuclear power reactor could be a good reference during the development of review guideline for FDP of nuclear facilities in our country