U.O. Home


    Welcome to the Users Office

    Our mission is to welcome, register and provide support to CERN’s guest scientists.

    We are responsible for the contracts with CERN and handling Host-State documentation of the Associated Members of the Personnel
    (Users, COAS and VISCs).

    On this website you will find links to several resources and services provided by CERN. 



    The Users Office will exceptionally be closed all morning on Friday 2 December.


    Visa - Pre-registration - Insurance - Accommodation - Cost of living and adequate resources - Culture
    Access to the site - Computing account - Courses - Rules and regulations - Onboarding - CERN services
    CERN services and amenities - Practical information on life in France and Switzerland
    Health insurance - Social security
    Initial application - Renewal - Loss and theft - Cancellation
    Online declaration of changes via EDH - Termination