Comparison between ICRP Recommendations and Domestic Laws and Regulations

Present laws and regulations in Japan have not yet completed the incorporation of the 2007 Recommendations of the ICRP, but dose limits specified in the 2007 Recommendations are mostly the same as those in the 1990 Recommendations. Therefore, dose limits in Japan also mostly coincide with those specified in the 2007 Recommendations. Japan has uniquely specified dose limits for female radiation workers (5 mSv per three months).

The ICRP Statement on Tissue Reactions provides recommendations concerning the equivalent dose limit for the lens of the eye under planned occupational exposure. Following the Statement, in Japan, the Radiation Council compiled and provided some insights on “Approach to Radiation Protection of the Lens of the Eye” in 2018, for relevant administrative bodies, and all related laws and regulations (the Regulation on Prevention of Ionizing Radiation Hazards, etc.) were amended in 2021.

• Included in this reference material on March 31, 2013
• Updated on March 31, 2023