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. 

NOTICES:  1. The Users Office will exceptionally be closed on Tuesday 28th March 2023 in the morning.

2. Route de Meyrin closed on the nights of 27 March to 4 April.

DEDICATED SUPPORT 

> Support to those affected by the war in Ukraine : click here.  > Support to MPAs affiliated to Russian and Belarusian institutes (including JINR): click here

HELP WITH CROSSING BORDERS 

In case of difficulties at the borders, immigration authorities of the Schengen area may contact:

> for Switzerland, the International Security Police at Geneva Airport, tel. +41 22 427 58 30 (until midnight) or tel. n° +41 22 427 92 20 (24 hours a day): more information here.

> for France, the Protocol of the Ministry for Europe and Foreign affairs, tel. +33 (0)1 53 69 30 20 (diplomatic privileges and immunities) / +33 (0)1 53 69 37 69 (consular privileges and immunities), on working days and hours: more information here.