If you arrive at CERN outside of office hours (evening or weekend), you will be able to enter the site by showing your CERN Hostel booking confirmation to the guards at the entrance, and then visit the Users Office on the next working day during opening hours.

EDH pre-registration forms are valid for 6 months starting from the date of signature of the Home Institution Declaration (provided the contract end date is also still valid).  

If you want to keep your computer account, please ask your Team Leader or Experiment Secretariat to register you as an External Participant in an Experiment. 

Once you have successfully been pre-registered as a User, COAS, VISC or External Participant in an Experiment, you can send a request to obtain a computing account to the Service Desk.

It will not be possible for you to register for any classroom-based training sessions before finalising your registration (ie. signing your contract in person at the Users Office).

It is nevertheless possible for you to pre-register for classroom-based training sessions. 

Knowledge base article.

Information on the Service Portal. 

Once you have successfully been pre-registered as a User, COAS, VISC or External Participant in an Experiment, your computing account will be automatically activated. More information on Automatic activation of the computing account.

Please refer to the CERN admin e-guide for information on visitor access cards.

Please see the Access and Registration service page.