Today, we received an order document*, "Regarding interpretation of safety
regulations on emergency generating facilities", from Nuclear and 
Industrial Safety Agency, Ministry of Economy, Trade and Industry.

Based on this order, in conjunction with an order received on March 30, we
will take actions immediately.

* Order document
"Regarding interpretation of safety regulations on emergency generating 
facilities: an order"

 (April 9, 2011)
The Earthquake Off the Coast of Miyagi Prefecture occurred on April 7, 
2011 and Higashi-dori Nuclear Power Station of Tohoku Electric Power 
Company lost the offsite power and emergency generating facilities started
up to maintain the power source. Although the offsite power has been 
restored,emergency generating facilities shut down due to some troubles.
Thus, it was reported as a failure to secure the restriction of operation
regulated in the safety regulations.
Amongst the matters on operation of nuclear reactors facilities in the 
safety regulations stipulated in such as Article 16.7 of the current 
"Rules on the Installation and Operation of Commercial Power Reactors"
(No. 77 of Ordinance of Ministry of International Trade and Industry, of 
Showa 53 (of 1978)), the interpretation on restriction of operation 
requires one emergency generating facility operable for each nuclear 
reactor in the condition of cold shutdown such as during regular 
inspections and fuel replacement (which includes the cases of storing 
spent fuels in spent fuel pools). However, in consideration of the 
accident of Fukushima Daiichi Nuclear Power Station caused by Tsunami 
induced by Tohoku-Chihou-Taiheiyo-oki Earthquake, 2011, it is extremely 
important to secure power source. Therefore, the interpretation was 
amended to require two emergency generating facilities operable which 
connect to necessary emergency alternate-current high-voltage bus line for
each nuclear reactor (when power stations have more than one nuclear 
reactor, they can count the number of emergency generating facilities of 
other units which are connected to the necessary emergency 
alternate-current high-voltage bus line.) 
As a result, it is required to immediately take actions for emergency 
safety measures, ordered on March 30, including securing power supply cars,
fire fighting engines, fire fighting hose and others and also is required 
to immediately implement amendment of safety regulations of "Rules on the 
Installation and Operation of Commercial Power Reactors", which fulfils 
the above interpretation and also is one of the safety measures for 
emergency, by April 28 of this year.