The Users' Office welcomes CERN's guest scientists and is responsible for CERN contracts of the Associated Members of the Personnel and for their related Host State documents.
Welcome to the Users' Office
Due to the compilation of CERN statistics, the contracts expired at the latest on 31/12/2018 have been terminated. We regret that no "grace period" for their extension could be granted.
Monday, Tuesday, Thursday, Friday : 08.30 – 12.30
Monday to Friday: 14.00 – 16.00
Closed Wednesday mornings and on official CERN holidays
Change of Category of Association with CERN (Change of Status)
Change of Institute or Departement
Change of average presence at CERN
Change of experiment or project for Users
Contract Extension (possible 28 days before the end of contract date)