Mandatory, visible badge-wearing at CERN

From 2 May 2018, all persons present on the CERN sites will be required to wear their badges where they can be easily seen.


Why do I have to wear a badge?

Badge-wearing is a measure suggested by the Host States as a means of improving security within the Organization. CERN’s Enlarged Directorate has approved this measure and appeals to the civic-mindedness of each and every individual to ensure compliance with it.


Which sites does this apply to?

 All the fenced parts of the CERN site.


Who does it apply to?

 All persons accessing CERN’s fenced sites:


  • Members of the personnel
  • Contractors’ personnel
  • Beneficiaries of the Pension Fund
  • Members of the Council, committees and other subsidiary bodies of CERN, and Industrial Liaison Officers (ILOs)
  • Persons with special permits
  • Family members of a member of the CERN personnel
  • Regular visitors (regular individual visitors on submitting a substantiated request, members of clubs and visitors to the Staff Association’s kindergarten and school)
  • Short-term visitors (visitors attending an event or participating in an organised visit)


How can I obtain a badge?

As in the past, all persons who regularly access the CERN sites can obtain an access card when they have completed the requisite formalities with the competent services for the relevant category, in accordance with this document.

A system has been established to generate badges for occasional visitors.

Guests accompanied by a guarantor: as before, you must submit a request via the Service Portal.

Visitors attending a conference or other event: the conference or event must have been registered in Indico in advance. The interface now has a badge generation function. You can either ask your visitors to print their badges at home, or print them at CERN and distribute them at the entrance. Badge holders will be issued to visitors at Reception or in Building 55. A user manual for this new Indico function is available.

Visitors registered for a tour of the Laboratory: visitors must fill in their names and surnames on the registration form. Badges will be issued at Reception.


How should I wear my badge?

There are various ways to wear the badge: for example, on a lanyard around your neck, or attached to an item of clothing by means of a clip. Lanyards and clips are available at the Registration and Access Control Service (Building 55)

If your working conditions do not permit you to wear a lanyard around your neck, you can obtain an armband from the CERN Stores (Building 73).


What should I do if I forget my badge?

 If you forget your badge, you can present your carte de légitimation, which indicates that you are a member of the CERN personnel, or request a one-day laissez-passer from the Registration and Access Control Service (Building 55).


What should I do if I my badge is lost or stolen?

 If your badge is lost or stolen, complete the declaration of loss or theft of your access card using the Service Portal. The old card will be deactivated and you can have a new badge made on the ground floor of building 55 (Access Cards).


For more information on badge-wearing, please contact