Current COVID-19 conditions for CERN visitors

[updated 22 April 2022]

The health and safety of all those who visit and/or work at CERN is paramount. CERN has adapted many activities to the evolution of the COVID-19 pandemic.

Thus since 1 June 2021, CERN has implemented a new four-level COVID-19 scale, determining conditions for several measures, including access for visitors. The level in force at any given time is determined by the incidence rate in the local area, and a qualitative assessment by CERN taking into account, among other parameters, the number of confirmed cases at CERN and vaccination status in the local area.


Please note that CERN is an international organization and that whatever the measures applicable in the Host States, specific measures apply at CERN.

CERN public facing activities are now under COVID Level 1 which means that:

Sanitary measures (activity-specific measures are communicated on site)

No entrance Access of visitors to CERN sites is not allowed in situations of
  • contact in the last 14 days with a person that has tested positive for COVID-19 or is suspected to be infected by coronavirus
  • a suspected or confirmed case of COVID-19
Mask wearing Wearing of a mask is left to your discretion.

We may require wearing of a surgical type 1 or FFP2 mask in a limited number of locations during guided tours.
Visits Service will inform you should a mask be needed.
Sanitizing gel It is recommended to disinfect with hand sanitizing gel before entering the venues

​Any changes to these measures will be published on this page. 

Don't forget that you can still discover CERN online or attend a virtual tour or talk.