The IAEA has published international reviews on the situation and initiatives related to decommissioning and contaminated water by a research team of nuclear energy experts.

After the accident, the Japanese government formulated the Mid-and-Long-Term Roadmap towards the Decommissioning of TEPCO’s Fukushima Daiichi Nuclear Power Station, which sets out the basic approach and main phases for decommissioning of the Fukushima Daiichi Nuclear Power Station.

Upon the request of Japanese government, the IAEA organized five missions of the International Peer Review of the Roadmap in April 2013, November and December 2013, February 2015, November 2018, and August 2021. The results of the review were put into reports, which are available on the IAEA website.

Reference
August 27, 2021 news release by the Ministry of Economy, Trade and Industry