The authorisation provided for in article L. 6122-1 may only be issued to a health establishment or a health cooperation grouping if it has the following facilities on the same site, possibly by agreement with another establishment located on this site, in a common building or failing that in neighbouring buildings:
1° A full-time inpatient unit and protected operating theatres for neurosurgical patients;
2° An intensive care unit authorised under either 1° of article R. 6123-34-1, or 1° or 2° of article R. 6123-34-2;
3° An imaging technical platform enabling neuroradiology examinations to be carried out.
The authorisation specifies the site where the activity is carried out. Only one authorisation may be issued per site.