Welcome to the Users' Office

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.

Due to the compilation of CERN statistics, the contracts expired at the latest on 31/12/2018 will be terminated before 18/01/2019. We regret that there will be no "grace period" for their extension.

Please note that, due to a Group meeting, the Users' Office will be exceptionally closed on Tuesday 29 January. We thank you for your understanding.

Users' Office location: Bldg. 61MapCERN App

Opening Hours:
Monday, Tuesday, Thursday, Friday : 08.30 – 12.30
Monday to Friday: 14.00 – 16.00
Closed Wednesday mornings and on official CERN holidays

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