NRA Library
Annual Report
- NRA Annual Report FY 2023【PDF：5MB】
- NRA Annual Report FY 2022【PDF：5MB】
- NRA Annual Report FY 2021【PDF：3MB】
- NRA Annual Report FY 2020【PDF：6MB】
- NRA Annual Report FY 2019【PDF：5MB】
- NRA Annual Report FY 2018【PDF：5MB】
- NRA Annual Report FY 2017【PDF：6MB】
- NRA Annual Report FY 2016【PDF：5MB】
- NRA Annual Report FY 2015【PDF：2MB】
- NRA Annual Report FY 2014【PDF：2MB】
- NRA Annual Report FY 2013【PDF：1MB】
- NRA Annual Report FY 2012【PDF：1MB】
Related Acts
- 21 March 2017
- Act on Prevention of Radiation Hazards due to Radioisotopes, etc. and its relevant Ordinances
- enacted on 1 March 2014
- Act for Establishment of the Nuclear Regulation Authority(enacted on 1 March 2014)（Provisional Translation）【PDF：169KB】
- enacted on 1 March 2014
- Act on the Regulation of Nuclear Source Material, Nuclear Fuel Material and Reactors (enacted on 1 March 2014) (Provisional Translation)【PDF：648KB】
Special Reports
- Events and Ratings at Nuclear Facilities and Radioisotope Licensees in Japan in FY1996-2016【PDF：1MB】
- Analysis of the TEPCO Fukushima Daiichi NPS Accident（Interim Report）【PDF：11MB】
Information on TEPCO Fukushima Daiichi NPS
Fukushima Daiichi Reports
- Evaluation of the Tokyo Electric Power Company’s Report Regarding Tank Area In-Dike Rainwater Leakage at the Fukushima Daiichi Nuclear Power Station【PDF：678KB】
- Evaluation of the Tokyo Electric Power Company’s Report Regarding Leakage from Contaminated-Water Transfer Hose at the Fukushima Daiichi Nuclear Power Station【PDF：809KB】
- Evaluation of the report by Tokyo Electric Power Company regarding an alarm set off from a side ditch effluent radiation monitor at the Fukushima Daiichi Nuclear Power Station【PDF：981KB】
- Evaluation of the report by Tokyo Electric Power Company regarding the leakage from piping transferring water treated at the Multi-nuclide Removal System (ALPS) at the Fukushima Daiichi Nuclear Power Station【PDF：1MB】
- Evaluation of the report by Tokyo Electric Power Company regarding the leakage from a connection valve between A5 tank and A6 tank in the G4 South Tank Area at the Fukushima Daiichi Nuclear Power Station【PDF：1MB】
- Evaluation of the report of Tokyo Electric Power Company regarding the leakage from the 4000-t square steel tank cluster at the Fukushima Daiichi Nuclear Power Station【PDF：1MB】
- Evaluation of the report of Tokyo Electric Power Company regarding the leakage from the RO-treated water storage tank at the Fukushima Daiichi Nuclear Power Station【PDF：914KB】
- Evaluation of the report of Tokyo Electric Power Company regarding the leakage from the RO-3 contaminated water treatment facility desalination system (reverse osmosis membrane system) at Fukushima Daiichi Nuclear Power Station【PDF：1MB】
- Evaluation of the report of the Tokyo Electric Power Company regarding the leakage from the double strainer differential manometer for the water transfer pipes of the desalination system at Fukushima Daiichi Nuclear Power Station【PDF：563KB】
- Evaluation of the report of Tokyo Electric Power Company regarding the leakage from the RO-concentrated water storage tank (H6 area C1 tank) at the Fukushima Daiichi Nuclear Power Station【PDF：1MB】
- Evaluation of the report of Tokyo Electric Power Company regarding the inflow of water that accumulated in the process main building into the incineration building at the Fukushima Daiichi Nuclear Power Station【PDF：1MB】
- Evaluation of the report of Tokyo Electric Power Company regarding the leakage from the RO concentrated water storage tank at the Fukushima Daiichi Nuclear Power Station【PDF：2.69MB】
ALPS treated water discharge related materials
- Approval to amend the Implementation Plan (Installation of ALPS Treated Water Discharge Facility) of Tokyo Electric Power Company Holdings Fukushima Daiichi Nuclear Power Station【PDF：105KB】
- Review Results Document on the Application for Approval to Amend the Implementation Plan pertaining to Specified Nuclear Facility (Operational Measures of ALPS Treated Water Discharge) of Tokyo Electric Power Company Holdings Fukushima Daiichi Nuclear Power Station (Provisional translation)【PDF：160KB】
- Review Results Document on the Application for Approval to Amend the Implementation Plan pertaining to Specified Nuclear Facility (Installation of ALPS Treated Water Discharge Facility) of Tokyo Electric Power Company Holdings Fukushima Daiichi Nuclear Power Station (Provisional translation)【PDF：371KB】
- METI : "Basic Policy on handling of ALPS treated water at the Tokyo Electric Power Company Holdings’ Fukushima Daiichi Nuclear Power Station(Provisional translation)"
- TEPCO : "Application Documents for Approval to Amend the Implementation Plan for Fukushima Daiichi Nuclear Power Station Specified Nuclear Facility" (Provisional translation)
- Original versions of the Review Meeting materials in Japanese
- TEPCO : "Review Meeting on the Implementation Plan Regarding the Handling of ALPS Treated Water" (Provisional translation)
Review Meeting Documents
- December 24, 2021
- 3rd meeting
- NRA : Major Points to be Clarified regarding Application of Facilities for Discharge of ALPS Treated Water into the Sea【PDF：128KB】
- Minutes【PDF：173KB】
- January 11, 2022
- the 4th Meeting
- Minutes【PDF：143KB】
- January 20, 2022
- the 5th Meeting
- Minutes【PDF：287KB】
- January 27, 2022
- the 6th Meeting
- Minutes【PDF：304KB】
- February 1, 2022
- the 7th Meeting
- Minutes【PDF：280KB】
- February 7, 2022
- the 8th Meeting
- Minutes【PDF：268KB】
- February 15, 2022
- the 9th Meeting
- Minutes【PDF：288KB】
- February 25, 2022
- the 10th Meeting
- March 1, 2022
- the 11th Meeting
- March 10, 2022
- the 12th Meeting
- March 18, 2022
- the 13th Meeting
- April 11, 2022
- the 14th Meeting
- April 15, 2022
- the 15th Meeting
1st IAEA Review meeting materials（March 21, 2022）
- Agenda【PDF：108KB】
- A：Responsibilities and Functions of the Government【PDF：244KB】
- B：Major principles and safety objectives【PDF：560KB】
- C-1：Authorization process【PDF：2MB】
- C-2-1：Assessment for Representative Person and Reference Animals and Plants【PDF：3MB】
- C-2-2：Corroborative calculations of tritium concentrations in seawater simulated in the radiological impact assessment using ROMS【PDF：588KB】
- C-2-3：REIA – Potential exposure【PDF：352KB】
- C-3：Characterization of Source Term【PDF：612KB】
- C-4：Occupational Radiation Protection【PDF：2MB】
- D-0：Overall structure of Monitoring Program regarding the discharge of ALPS treated water【PDF：52KB】
- D-1：Regulatory aspects on source monitoring【PDF：808KB】
- D-2：Overview of NRA’s Environmental monitoring based on Comprehensive Radiation Monitoring Plan【PDF：716KB】
- E：Public Communication and Involvement of Interested Parties【PDF：500KB】
2nd IAEA Review meeting materials (January 16, 2023)
- Agenda【PDF：115KB】
- NRA’s updates since the previous March Mission【PDF：403KB】
- B：Major principles and safety objectives【PDF：808KB】
- C-1：Regulatory process【PDF：694KB】
- C-1：Pre-service inspection【PDF：127KB】
- C-2-1：Revised REIA【PDF：673KB】
- C-2-2：Additional corroborative calculations of tritium concentrations in seawater simulated in the radiological impact assessment using a simple model【PDF：647KB】
- C-3：Characterization of Source Term【PDF：298KB】
- C-4：Occupational Radiation Protection【PDF：267KB】
- D-1：Regulatory aspects on source monitoring【PDF：975KB】
- D-2：Environmental Monitoring【PDF：603KB】
- E：Public Communication and Involvement of Interested Parties【PDF：521KB】
IAEA final mission to Japan before publication of the IAEA’s comprehensive report (May 29, 2023)
- NRA’s updates since the January Mission【PDF：616KB】
- Analysis result of ALPS treated water【PDF：717KB】
- Status of inspections on ALPS treated water discharge at the TEPCO’S FDNPS【PDF：469KB】
1st IAEA Review after Discharge meeting materials (October 24, 2023)
- Agenda【PDF：120KB】
- NRA’s updates from the Comprehensive Mission【PDF：416KB】
- Analysis result of ALPS treated water【PDF：556KB】
- Sea Area Monitoring regarding ALPS treated water【PDF：572KB】
2nd IAEA Review after Discharge meeting materials (April 26, 2024)
Others
Safeguards
- 15 may 2024
- Safeguards Activities in Japan 2023【PDF：300KB】
- 31 may 2023
- Safeguards Activities in Japan 2022【PDF：228KB】
- 23 may 2022
- Safeguards Activities in Japan 2021【PDF：168KB】
- 27 may 2021
- Safeguards Activities in Japan 2020【PDF：196KB】
- 2 April 2021
- Comprehensive Summary of Safeguards in Japan【PDF：3MB】
- 4 June 2020
- Safeguards Activities in Japan 2019【PDF：198KB】
- 27 May 2019
- Safeguards Activities in Japan 2018【PDF：320KB】
- 16 May 2018
- Safeguards Activities in Japan 2017【PDF：234KB】
- 5 July 2017
- Safeguards Activities in Japan 2016【PDF：331KB】
Monitoring
- 4 February 2025
- Monitoring results and analysis-3rd Quarter of FY2024-【PDF：6MB】
- 15 November 2024
- Monitoring results and analysis-2nd Quarter of FY2024-【PDF：5MB】
- 26 July 2024
- Monitoring results and analysis-1st Quarter of FY2024-【PDF：5MB】
- 25 April 2024
- Monitoring results and analysis -4th Quarter of FY 2023-【PDF：6MB】
- 25 January 2024
- Monitoring results and analysis -3rd Quarter of FY 2023-【PDF：6MB】
- 25 October 2023
- Monitoring results and analysis -2nd Quarter of FY 2023-【PDF：5MB】
- 25 July 2023
- Monitoring results and analysis -1st Quarter of FY 2023-【PDF：6MB】
- 25 April 2023
- Monitoring results and analysis -4th Quarter of FY 2022-【PDF：6MB】
- 25 January 2023
- Monitoring results and analysis -3rd Quarter of FY 2022-【PDF：5MB】
- 25 October 2022
- Monitoring results and analysis -2nd Quarter of FY 2022-【PDF：6MB】
- 25 July 2022
- Monitoring results and analysis -1st Quarter of FY 2022-【PDF：6MB】
- 25 April 2022
- Monitoring results and analysis -4th Quarter of FY 2021-【PDF：6MB】
- 25 January 2022
- Monitoring results and analysis -3rd Quarter of FY 2021-【PDF：5MB】
- 25 October 2021
- Monitoring results and analysis -2nd Quarter of FY 2021-【PDF：7MB】
- 27 July 2021
- Monitoring results and analysis -1st Quarter of FY 2021-【PDF：5MB】
- 26 April 2021
- Monitoring results and analysis -4th Quarter of FY 2020-【PDF：4MB】
- 26 January 2021
- Monitoring results and analysis -3rd Quarter of FY 2020-【PDF：4MB】
- 26 October 2020
- Monitoring results and analysis -2nd Quarter of FY 2020-【PDF：4MB】
- 27 July 2020
- Monitoring results and analysis -1st Quarter of FY 2020-【PDF：4MB】
- 27 April 2020
- Monitoring results and analysis -4th Quarter of FY 2019-【PDF：4MB】
- 27 January 2020
- Monitoring results and analysis -3rd Quarter of FY 2019-【PDF：5MB】
- 25 October 2019
- Monitoring results and analysis -2nd Quarter of FY 2019-【PDF：4MB】
- 25 July 2019
- Monitoring results and analysis -1st Quarter of FY 2019-【PDF：6MB】
- 25 April 2019
- Monitoring results and analysis -4th Quarter of FY 2018-【PDF：15MB】
- 1 February 2019
- Monitoring results and analysis -3rd Quarter of FY 2018-【PDF：5MB】
- 19 November 2018
- Monitoring results and analysis -2nd Quarter of FY 2018-【PDF：41KB】
- Monitoring results and analysis (detailed) -2nd quarter of FY 2018-【PDF：6.1MB】
Radiation Council
- 25 January 2019
- Summary report on the lessons about the technical standards for prevention of radiation hazards in emergency exposure situations and existing exposure situations after the TEPCO Fukushima Daiichi Nuclear Power Plant accident【PDF：88KB】
- 2 March 2018
- On a modality of the radiation protection for the lens of the eye” executive summary【PDF：18KB】
NRA Plans
Presentations
- 27～28 November 2022
- Presentation by the secretariat of NRA：OECD/NEA International Conference on Regulator’s Views and Priorities on Nuclear Safety and Radiation Protection 10 Years After TEPCO Fukushima Daiichi NPS Accident
- Investigation and analysis of TEPCO’s Fukushima Daiichi NPS Accidents【PDF：3MB】
- 16 March 2017
- Presentation by NRA Commissioner FUKETA：U.S. NRC Regulatory Information Conference (RIC) 2017
- Japan’s Challenges regarding Decommissioning【PDF：1MB】
- 20 February 2017
- Presentation by NRA Commissioner FUKETA：Global Nuclear Human Resource Development for Safety,Security and Safeguards
- Lessons Learned from the Fukushima Dai-ichi Accident regarding Safety Culture of Regulatory Body【PDF：419KB】
- 9 December 2016
- Presentation by NRA Commissioner TANAKA Satoru：IAEA International Conference on Nuclear Security
- A Nuclear Security Regime in Japan【PDF：822KB】
- 23 November 2016
- Presentation by NRA Commissioner ISHIWATARI：IAEA Technical Meeting on Lessons Learned and Safety Improvements Related to External Hazards Based on the IAEA Fukushima Daiichi Accident Report
- Japan’s Nuclear Regulation against Natural Hazards after the Fukushima Daiichi Accident【PDF：2MB】
- 29 August 2016
- Presentation by NRA Commissioner ISHIWATARI at the 35th International Geological Congress in Cape Town
- Japan’s Nuclear Regulation Standards against Natural Hazards after Fukushima【PDF：2MB】
- 13 May 2016
- Presentation by NRA Commissioner BAN at the 14th International Congress of the International Radiation Protection Association (IRPA) in Cape Town
- Lessons from Fukushima Daiichi Nuclear Accident and Efforts of Nuclear Regulation Authority【PDF：722KB】
- 12 April 2016
- Presentation by Mr. SHIMIZU, NRA Secretary-General, at the International Conference on Effective Nuclear Regulatory Systems
- Lessons Learned from the Fukushima Daiichi Accident, Actions Taken and Challenges Ahead【PDF：547KB】
- 3 June 2015
- Presentation by NRA Commissioner FUKETA：NEA Workshop on Challenges and Enhancements to Safety Culture of the Regulatory Body
- Lessons Learned from the Fukushima Dai-ichi Accident regarding Safety Culture of Regulatory Body【PDF：238KB】
- 19 May 2015
- Presentation by NRA Commissioner FUKETA：ICONE23
- Lessons Learned from the Fukushima Dai-ichi Accident and Responses in Regulatory Requirements【PDF：133KB】
- 8 April 2015
- Presentation by NRA Commissioner FUKETA：Workshop on Decommissioning of Nuclear Power Plants（NRA/NRC）
- Reducing Risk at Fukushima Dai-ichi NPS【PDF：4MB】
- 10 March 2015
- Presentation by NRA Commissioner FUKETA：USNRC Regulatory Information Conference(RIC 2015)
- Lessons Learned from the Fukushima Dai-ichi Accident and Responses in Regulatory Requirements【PDF：143KB】
- 15 September 2014
- Presentation by NRA Commissioner FUKETA：WRFPM*2014（*:Water Reactor Fuel Performance Meeting）
- Lessons Learned from the Fukushima Dai-ichi Accident and Responses in NRA Regulatory Requirements【PDF：246KB】
Presentation by NRA Commissioner OSHIMA at the Second ENSREG (European Nuclear Safety Regulators Group) Conference on Nuclear Safety in Brussels on 11 June 2013.
Presentation by NRA Commissioner FUKETA at PSAM 2013 on 15 June 2013. PSAM 2013 is a special Topical Conference which puts the spotlight on the Fukushima Daiichi Nuclear Power Station Accident from the PSA point of view.
Presentation by NRA Commissioner OSHIMA at the International Conference on Effective Nuclear Regulatory Systems on April 9, 2013.
Presentation by NRA Commissioner FUKETA at U.S. NRC Regulatory Information Conference (RIC) on March 11, 2014
Presentation by NRA Commissioner FUKETA at U.S. NRC Regulatory Information Conference (RIC) on March 13, 2013
Video Clips
- 11 March 2016
- Chairman Tanaka’s Address on the Fifth Anniversary of the Accident at TEPCO’s Fukushima Daiichi Nuclear Power Station
Chairman TANAKA visited Fukushima Daiichi Daini NPSs on 11-12 December 2014
Press conference by experts of the IAEA mission for decommissioning at the Foreign Press Center in Tokyo on 4 December 2013
The IAEA Experts’Observation on Seawater Sampling and their visit to TEPCO’s analysis factory on 7-8 November 2013
Message from Chairman on the 2nd Anniversary of the Fukushima Nuclear Accident
- Speech by NRA Chairman Tanaka at Fukushima Ministerial Conference (15 December 2012.) Youtube, etc （Lives & Records）
- NRA Commission Meetings & Press Conferences Youtube, etc （Lives & Records）
Links to Relevant Documents
Information System on Occupational Exposure(ISOE) Asian Technical Center
Operational Status of Nuclear Facilities in Japan
About NRA
- Chart of NRA
- Profile of Commissioners
- Core Value and Principles
- List of Officials
- Background of the Reforms for System & Organization of Nuclear Safety Regulation
- Annual Report
- NRA Regional Offices
- Leaflet
- Map and Directions
-
Contact Us
Nuclear Legislative Structure
Nuclear Regulatory Activities
- New Regulatory Requirements
- Information on TEPCO Fukushima Daiichi NPS
- Safeguards
- Monitoring results and analysis
-
Environmental Radioactivity Monitoring