Statement Following the International Symposium on Nuclear Safety (ISONS2011)

March 11, 2011, has become a day that must be remembered in the history of nuclear
power generation. Tokyo Electric Power Company’s Fukushima Dai-ichi Nuclear Power
Station (NPS) was hit by tsunami caused by the Tohoku-Pacific Ocean Earthquake, resulting
in nuclear accidents in its Units 1 to 4.
Since then, the Atomic Energy Society of Japan has been conducting activities in responseto the accident at the Fukushima Dai-ichi NPS on a voluntary basis, including technologicalassistance in explaining the situation to society to gain public understanding and settling theaccident and diverse support to restore the environment in areas around the NPS. We believethat these activities must continue.
The Japan Society of Maintenology responded to the disaster by contributing to reactive
maintenance for the restoration of power stations damaged by the tsunami and by establishingguidelines for the evaluation of anti-tsunami measures as a means of preventive maintenance.
To date, nuclear energy has been used as an energy source important for the resolution ofproblems such as energy security and global warming mitigation. At the same time, activities
to prevent nuclear accidents from occurring have been conducted. The fact that nuclearaccidents were caused by a massive tsunami despite these efforts has shaken all those engaged
in nuclear energy. We should analyze from various perspectives why the disaster could not be
prevented and what was missing, along with factors behind them.
At the Symposium, scientific societies reported their activities, while internationalorganizations and nuclear industries presented their wide variety of nuclear safety activities
conducted around the world. This reflects our intention of making this Symposium a forum
for discussion on nuclear safety across the boundaries between academia and industry.
With the strong determination to never let such a nuclear accident happen again, the Atomic
Energy Society of Japan and the Japan Society of Maintenology issue a joint statement basedon the reports at the Symposium.

Joint Statement

We respect the facts revealed, hold fair, unbiased and transparent discussions with a highsense of ethics, and make voluntary efforts to provide reliable, accurate information forsociety and to launch specific activities for this, in light of opinions and advice from thescientific societies and associations and international institutions that participated in thisInternational Symposium.

In order to ensure that such an accident will never happen, we, as a group of academic
experts, recognize that our important role is to seriously reflect on the accident at Tokyo
Electric Power Company’s Fukushima Dai-ichi NPS, identify lessons to be learned, andcontribute to securing future nuclear safety to the greatest extent possible.

Based on lessons derived through the summarization and analysis of the findings from theaccident, we earnestly make proposals and provide scientific and technological support so thatthese lessons can be reflected into measures taken by institutions and government agencies,
thereby contributing to efforts to enhance the safety of a large number of nuclear power
stations in operation throughout the world.

We continue to offer technical support toward the recovery of regional communities and thewhole country in an effort to restore public confidence.

While taking a scientific standpoint that searches for truth, we play an active role ininternational activities toward nuclear safety, such as nuclear safety standards development
and nuclear safety research aimed at enhancing safety, and help nuclear power plants in theworld to secure safety by scientific and rational management.

We hereby declare that, through these activities, we will pursue the safety of nuclear power
plants and contribute to the conservation of the global environment and the ensured supply ofenergy to humans.

November 1, 2011
Satoru Tanaka, President of the Atomic Energy Society of Japan
Kenzo Miya, President of the Japan Society of Maintenology