NISA

Japan gets a new nuclear safety body, now needs to...
Shunichi Tanaka, chairman of the Nuclear Regulation Authority, addresses employees of the NRA secretariat during an inaugural ceremony in Tokyo, Sept. 19. (Yusaku Kanagawa)
Japan inaugurated a new nuclear safety agency Sept. 19, as part of moves to tighten oversight of a sprawling industry blamed for one of the world's worst nuclear disasters.
NISA to order fault surveys at Mihama plant, Monju...
The Mihama nuclear power plant in Fukui Prefecture (Asahi Shimbun file photo)
The Nuclear and Industrial Safety Agency plans to order geological fault surveys at two additional nuclear power facilities, which could lead to a decommissioning of both...
Another worker 'forgets' to wear dosimeter at...
A worker returns a dosimeter to a counter at the Fukushima No. 1 nuclear power plant on Feb. 20. (Pool)
An employee of a subcontractor worked at the stricken Fukushima No. 1 nuclear power plant on Aug. 10 without wearing a personal dosimeter, plant operator Tokyo Electric Power...
NISA dismisses fears over failing Genkai reactor...
An aerial photo of the Genkai nuclear power plant in Saga Prefecture shows the cylinder-shaped No. 1 reactor on the far left. (Asahi Shimbun file photo)
The Nuclear and Industrial Safety Agency, overriding expressions of concern from experts, concluded July 27 there is no problem with the strength of the pressure vessel of the...
Candidates for nuclear regulatory commission paid...
Kunihiko Shimazaki (Asahi Shimbun file photo)
Two of the five prospective commissioners of a new nuclear regulatory commission received payments from operators of nuclear power plants but likely did not violate guidelines...
Utilities to start fault surveys at nuclear plants...
The Shika nuclear power plant in Ishikawa Prefecture (Asahi Shimbun file photo)
Two electric power companies submitted plans July 25 to the Nuclear and Industrial Safety Agency (NISA) for fresh surveys of possible active faults running under two nuclear...
New fault-line surveys ordered at 2 nuclear plants
The Oi nuclear power plant in Fukui Prefecture (Asahi Shimbun file photo)
The Nuclear and Industrial Safety Agency (NISA) has ordered two power companies to conduct a fresh survey at two nuclear plants to determine if fractures running under the...
NISA orders re-examination of faults near reactors; ...
The No. 3 and No. 4 reactors, foreground, at the Oi nuclear power plant (Asahi Shimbun file photo)
Safety experts issued warnings--and expressed utter bewilderment--during discussions on possible active geological faults running near nuclear reactors in this earthquake-prone ...
NISA warns of active fault beneath Shika nuke plant
The Shika nuclear power plant in Ishikawa Prefecture (Asahi Shimbun file photo)
A geological fault line that runs directly beneath a reactor building at the Shika nuclear plant in Ishikawa Prefecture is likely an active one, a government agency has warned, ...
NISA calls for reviews of fault lines near Fukui...
The Asahi Shimbun
The Nuclear and Industrial Safety Agency said it will order reassessments of the seismic risk of geological fault lines that run near two nuclear facilities in Fukui Prefecture.
NISA on apology tour for mishandling U.S. radiation ...
Eiji Hiraoka, vice director-general of the Nuclear and Industrial Safety Agency, bows in apology to Katsurao Mayor Masahide Matsumoto for failing to release U.S. radiation data after the accident at the Fukushima No. 1 nuclear power plant. (Takatsugu Nishimura)
Government officials on June 28 apologized to municipalities around the crippled Fukushima No. 1 nuclear plant for failing to release U.S. data that could have prevented...
Outgoing NISA OKs construction of nuke reprocessing ...
The existing uranium enrichment plant in Rokkasho, Aomori Prefecture, operated by Japan Nuclear Fuel Ltd. (Asahi Shimbun file photo)
The soon-to-be-abolished Nuclear and Industrial Safety Agency gave the OK on June 26 for work to continue on the construction of a nuclear fuel reprocessing plant in Rokkasho,...
NISA: Quake estimate for Shimane nuclear plant too...
The Shimane nuclear power plant in Matsue, Shimane Prefecture, in April 2010 (Asahi Shimbun file photo)
The Nuclear and Industrial Safety Agency on June 19 told Chugoku Electric Power Co. that its maximum estimate for an earthquake striking around the Shimane nuclear power plant...
NISA admits it was negligent, apologizes for shoddy ...
At NISA's news conference on June 18, the radiation map and related materials provided by the United States were distributed to the media. (The Asahi Shimbun)
An embarrassed Nuclear and Industrial Safety Agency admitted June 18 that its lax oversight led to thousands of residents evacuating to areas with high radiation levels after...
Government ignored U.S. radiation monitoring data...
The Asahi Shimbun
Even as thousands of residents pondered the implications of the nuclear disaster in Fukushima Prefecture last year, Japanese government officials took little notice of...
Parties leave open operating limits for nuclear...
The No. 1 reactor, left, of the Mihama nuclear plant in Fukui Prefecture is one of a few reactors in Japan operating for more than 40 years. (Asahi Shimbun file photo)
The ruling and opposition parties on June 14 agreed on legislation to create a new nuclear regulatory commission with greater independence from the government, but they left...
EDITORIAL: NISA’s decision on Mihama reactor is...
The Nuclear and Industrial Safety Agency (NISA) has decided that it is reasonable to extend the operation of the No. 2 reactor of Mihama nuclear power plant in Fukui Prefecture ...
Ex-NISA boss opposed widening nuke plant emergency...
Kenkichi Hirose, former director-general of NISA (Asahi Shimbun file photo)
The head of the Nuclear and Industrial Safety Agency fought plans by the Nuclear Safety Commission of Japan to broaden emergency planning zones around nuclear power plants in...
NISA OKs operating Mihama nuke reactor beyond 40...
The No. 1, No. 2 and No. 3 reactors, from bottom to top, at the Mihama nuclear power plant in Mihama, Fukui Prefecture (Asahi Shimbun file photo)
The Nuclear and Industrial Safety Agency has concluded there are no problems in extending the operational life of the decades-old Mihama nuclear plant's No. 2 reactor by 10...
Japan starts atomic watchdog debate, reactor...
Japan's parliament began a debate on May 29 about plans for a new nuclear watchdog, raising hopes of a compromise after months of political bickering that has postponed a...