The CERN Admin e-guide is a guide to the Organization's administrative procedures, which has been drawn up for the benefit of the various administrative services as well as all members of the personnel and other categories of persons having access to the site or installations of the Organization. It contains concise information on the procedures in force and exists in both English and French.

The Admin e-guide is not designed to be exhaustive and is not a substitute for the legal texts on which it is based. Furthermore, CERN may not always be informed of changes in the national regulations and practices of the Host States. The Administrative Processes section, which is responsible for the guide, is therefore unable to guarantee the accuracy and completeness of the information contained in the guide and at the links to which it refers.

In our continuing efforts toward gender inclusiveness at CERN, we are progressively updating our texts and writing style in favour of gender inclusive language.  In cases where the masculine gender is apparent, it should be understood as referring to all genders unless the specific context requires otherwise.

Welcome to the public site of the Admin e-guide!

Without authentification, you may view the public procedures displayed on the right hand side, only. Some links in these procedures point to pages with restricted access; this information - as well as the internal procedures - is therefore not visible.

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Public procedures



Categories of Persons

Arrival and Departure

Stay in Host States

Payment of Travel Expenses and Removal


Financial Management

Termination of Contract


Management of Persons, Institutes and Experiments (PIE)

External funding

Internal communication

Legitimation cards