The Ministerial ordinance on exemption of the Ordinance on Prevention of Ionizing Radiation Hazards in response to the situation resulting from the Tohoku-Pacific Ocean Earthquake in 2011 (MHLW Ordinance No.23, 2011; hereinafter referred to as “Ordinance No. 23, 2011”) is promulgated on the date of this notice to have come into force on 14 March 2011.
Ordinance No. 23, 2011 is intended to take emergency measures quickly to cope with a series of incidents at the TEPCO Fukushima Daiichi Nuclear Power Plant associated with the Tohoku-Pacific Ocean Earthquake in order to prevent the propagation of the nuclear disaster. Therefore, the purposes shown in the following shall be understood thoroughly by all and all shall be careful that nothing goes amiss.
It should be noted that further additional directions might be made on the application of Ordinance No. 23, 2011.
I Overview of Ordinance No.23, 2011
During the period from the issuance of the declaration of a nuclear emergency situation pursuant to the provisions of Article 15, paragraph 2 in the Act on Special Measures Concerning Nuclear Emergency Preparedness (Act No. 156, 1999) to the issuance of the declaration cancelling the nuclear emergency situation pursuant to the provision of paragraph 4 of the said Article, due to the Tohoku-Pacific Ocean Earthquake in 2011, the upper radiation exposure dose limit for the emergency workers prescribed under Article 7, paragraph 2 of the Ordinance on Prevention of Ionizing Radiation Hazards ( MHLW Ordinance No. 41, 1972 ; hereinafter referred to as “the Ionizing Radiation Ordinance” ) was raised from 100 mSv to 250 mSv for the particularly unavoidable emergency case within the emergency measures response implementation area prescribed in Article 17, paragraph 8 of the said Act.
II Details of Ordinance No.23, 2011