Commentaries: Art. 51

Occupationally exposed persons means persons who:
1. in the course of their occupational activities or training may incur exposure which exceeds a dose limit for members of the public as specified in Article 22; this is without prejudice to paragraph 2;
2. work or undergo training at least once a week in controlled areas as defined in Article 80; or
3. work or undergo training at least once a week in supervised areas as defined in Article 85 and may thus be exposed to an increased ambient dose rate.
Persons who are subject solely to radon exposure at their workplace are only deemed to be occupationally exposed if they may thereby accumulate an effective dose of more than 10 mSv per year (Art. 167 para. 3).
The licence holder, or in the case of aircrew the aircraft operator, shall designate all occupationally exposed persons within the enterprise.
Licence holders, or in the case of aircrew the aircraft operator, shall inform the occupationally exposed persons regularly of:
1. the radiation doses to be expected in the course of their work;
2. the dose limits applicable for them;
3. the health risks associated with their work;
4. the radiological protection measures which must be observed for their work;
5. the risks of radiation exposure for the unborn child.