Based on the Ordinance of the Ministry of Economy, Trade and Industry 
(METI)*1, the Tokyo Electric Power Company has submitted a maintenance 
plan report regarding the 10th maintenance cycle*2 for Unit 7 of 
Kashiwazaki-Kariwa Nuclear Power Station to the METI.

The maintenance plan of Unit 7 was stipulated in the safety regulations*3 
with the implementation of an inspection system to enhance the 
preservation activities for the nuclear power facilities, and describes 
the inspection, replacement, and reconstruction plans of the facilities, 
and safety management for periodic inspections with a 13-month operations 
period.

While we have been putting all of our efforts into securing the safety of 
the station as a top priority, we are also implementing preventative 
countermeasures such as inspection restoration works, seismic 
strengthening works, and tsunami protection measures against disasters. We 
will enhance the preservation activities for the facilities of the nuclear 
power station to improve the reliability of the whole plant. 

*1 Ordinance of the Ministry of Economy, Trade and Industry (METI)
The ordinance was enforced on January 1, 2009. It was based on the 
partially revised Ordinance for the Enforcement, Electricity Business Act, 
following the partial revision of regulations regarding the installation 
and operation of the practical power reactor. The main revisions are as 
follows:
-The clarification of items to be mentioned in the Safety Regulations. 
 (distinguish the items to be mentioned in the Safety Regulations for the 
 Facilities for Nuclear Power Generation from items for other Electric 
 Facilities for Business Use, and report them respectively, Article 50)
-Enhancement of preservation activities (report of maintenance plans, 
 thorough preventative maintenance, Article 50, Article 94-3)
-Schedule optimization of periodic inspections (Article 91)

*2 10th maintenance cycle
The period from the start date of the 10th periodic maintenance to the day 
before the start date of the 11th periodic maintenance.

*3 Safety Regulations
Based on Article 42, the Electricity Business Act, a person who installs 
Electric Facilities for Business Use notifies METI of safety regarding 
construction, operation, and the maintenance of Electric Facilities for 
Business Use. 
Safety Regulations are established for each type of Electric Facility for 
Business Use (except Nuclear Power Generation facilities) and Electric 
Facilities for Business Use (Nuclear Power Generation facilities).
Maintenance plans have been established for each plant which starts 
periodic maintenance from April 1, 2009 as the Appendix of Safety 
Regulations (Electric Facilities for Business Use (Facilities for Nuclear 
Power Generation))