Leave Requests


Employed members of the personnel are entitled to official leave, as well as to sick leave.

Applicable to:  Associates, Students, Employed members of the personnel (staff members and fellows)


Annual Leave

The CERN leave year runs from 1st October to 30 September of the following year.
2.5 days are credited to the "annual leave" account in EDH each month.

Annual leave may not be taken without the supervisor's prior approval. Members of the personnel must complete a Demande d'absence / Absence Request in EDH, indicating "Annual Leave".


Sick Leave

A medical certificate (see the sample template for illness/accident certificate) must be provided for any absence of more than three consecutive days. A new medical certificate is required each month if the absence continues.

Only a scanned copy of the medical certificate must be sent by the member of the personnel to CMS secretariat.


Leave for family reasons

Employed members of the personnel are entitled to paid or unpaid leave for family reasons:

  • paid
    • maternity
    • paternity
    • adoption of a child
    • family event (marriage, death of a close relative)
    • illness of a close relative*
  • unpaid
    • parental leave
    • compassionate leave

* Close relative of a member of the personnel = spouse/partner, child, father, mother, brother, sister, parent-in-law or step-parent. Document: Medical certificate in the event of illness of a close relative (template)

This type of leave is entered in EDH by Department Secretary.
All necessary documents should be provided to the CMS secretariat.

More information provided on the CERN admin e-guide