Article R4451-64 of the French Labour Code
I.-The employer shall implement appropriate individual dosimetric monitoring when the worker is classified within the meaning of Article R. 4451-57 or when the effective dose assessed in application of 5° of Article R. 4451-53 is likely to exceed 6 millisieverts. II – For all other workers accessing delimited areas under Article R. 4451-24, the employer shall use appropriate means to ensure that their exposure remains below the dose levels used…