I.-The provisions of this section apply to any employer likely to entrust a worker during a radiological emergency situation referred to in Article L. 1333-3 of the Public Health Code with the implementation of actions intended to :
1° Prevent or reduce a risk associated with such a situation ;
2° Contribute to the continued operation of a non-interruptible activity of strategic importance.
II-The actions concerned are those carried out within the perimeters :
1° Of the establishment at the origin of the radiological emergency ;
2° Protection of the population set up by the public authorities in the event of a radiological emergency when an emergency plan is triggered in accordance with articles L. 741-1 to L. 741-4 and L. 741-6 of the French Internal Security Code;
3° Protection put in place when a transport operation is the cause of the radiological emergency.