Health and Safety

For specific questions, visit the FAQ section.

Question Mark

If you have any questions, do not hesitate to ask a CERN volunteer (everywhere).


You are allowed to take photos. You can photograph or film anything you wish but please do not violate the privacy of individuals.


Wear appropriate footwear. Flat shoes are strongly recommended throughout your visit.


For your own safety, please stay inside the visit area at all times and pay careful attention to the safety signs.


If the evacuation alarm sounds, you must follow your guide and evacuate the building calmly.


Backpacks are allowed on the CERN sites, but they are not authorised for certain tours.

Childcare Children should be accompanied by adults at all times


First Aid

CERN has a medical service and trained first-aiders. You can find the closest First Aid point by following the signs, or ask a CERN collaborator. Please do not move anyone who has been injured.

In the event of an emergency or incident, call: +41227674444


CERN does not allow luggage on tours.


Animals are not allowed on the CERN site except for trained assistance dogs, to aid a person with disability. In such cases, please contact a CERN collaborator.


All unattended baggage will be removed and may be destroyed by the police. CERN accepts no responsibility in such cases.


Smoking is forbidden in all enclosed or covered spaces on CERN`s premises.


Backpacks are not authorised in the underground areas.

selfie stick

Selfie sticks are not authorised in the indoor visit areas.

high heels

Open shoes, high heels, sandals and flip-flops are not permitted in certain areas.


Caution: people wearing pacemakers or other medical implants are not authorised to enter certain areas. Pay attention to the signs and please enquire if in doubt.