Regulations on the prevention of ionizing radiation hazards

The regulations for the purpose of preventing ionizing radiation hazards in accordance with the Labor Safety and Hygiene Act. The enterprises concerned should make efforts to reduce, as far as possible, employee exposure to ionizing radiation. Covered are the following: controlled areas and limitations on exposure doses, protection from external radiation, prevention of contamination, emergency measures, the person in charge of X-ray operation and the person in charge of gamma-ray radiography operation, special education, work environmental measurements, health examination, and so on. (Mori, K.)