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
Monday, Tuesday, Thursday, Friday : 08.30 – 12.30
Monday to Friday: 14.00 – 16.00
Closed Wednesday mornings and on official CERN holidays
Users' Office Closure
Due to a meeting with other secretariats the Users' Office will be exceptionally closed on Thursday 18th October from 9.30 a.m. to 11.30 p.m.
We thank you for your comprehension.
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)