You can request the extension of your contract at the earliest four weeks before its expiry.
You may request all other changes at any time.
1. Extension modalities:
Your Contract Amendment request must be submitted via EDH (or exceptionally in the event of an EDH technical issue, via the paper contract amendment form).
2. Duration of the contract:
The maximum duration of each contract extension is 5 years for Users and Cooperation Associates, and 1 year for Visiting Scientists.
N.B.: short-term contracts cannot be extended. Should the period of association with CERN need to be prolonged, a new contract must be issued (a new EDH PREG must therefore be submitted).
3. List of possible contract changes and supporting documents :
|
Type of contract change |
Initial document(s) required |
Additional document(s) and action(s) required |
|
Contract extension |
EDH form + Home institution Declaration |
For holders of Host State documents only : - return your Swiss and French cards to the Users Office for extension, along with a copy of your passport / ID card. |
|
Increase of annual average presence from 50% or less to 55% or more (e.g.: from 40% to 100%) |
EDH form + Home institution Declaration |
Visit the Users Office to provide: - a copy of your passport - 3 passport-size photographs + - a copy of your D visa (for non-European / non-Schengen nationals only) |
|
Increase of annual average presence between 55% and 100% (e.g.: from 60% to 80%) |
EDH form + Home institution Declaration (only in the event of a simultaneous contract extension) |
N/A |
|
Decrease of annual average presence from 55% and above down to 50% or less (e.g.: from 100% to 20%) |
EDH form + Home institution Declaration (only in the event of a simultaneous contract extension) |
Return your Swiss and French cards to the Users Office for cancellation (+ your family's cards if applicable), and contact the CERN Mobility Center to settle your Green Plate situation if applicable. |
|
Decrease of annual average presence between 50% and 5% (e.g.: from 40% to 10%) |
EDH form + Home institution Declaration (only in the event of a simultaneous contract extension) |
N/A |
|
Change of experiment / project |
EDH form |
N/A |
|
Change of institute |
EDH form + Home institution Declaration |
N/A |
|
Change of status |
EDH form + Home institution Declaration |
The procedure for changes of status. If you are switching from a status handled by the HR Department (FELL, DOCT, PJAS, etc.) to a status handled by the Users Office (User, COAS or VISC) and encounter difficulties when trying to access to the Contract Amendment form, please contact your department secretariat. |
|
Change of organic unit |
EDH form |
N/A |