
The CERN Fire and Rescue Service have performed an intervention in this area
DO NOT CROSS ANY BARRIERS
The area is unsafe.
Only the CFRS, CSA or TSO have the authority to remove the security perimeter.
Exact instructions on what to do after a CFRS intervention depend on the nature of the incident. To learn more and for a list of precautionary actions, click on the incident type below:
For all CFRS interventions, an incident declaration form is created and you may be contacted by relevant safety personnel.
Fire
General Information
- Do not cross the cordon
- Be aware of structural damage that can be caused by fires, not all damage may be visible.
- Following a fire, the building will be ventilated, and power may be switched off. Contact the Building TSO for queries. Do not reset power or ventilation yourself.
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Do not restart elevators or any other transport equipment that requires re-energisation.
- Detailed information about specific risks can be found on the HSE Safety Risks webpages.
- In case of any concerns or queries about the safety of the premises, call the CFRS administrative line: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop, Think. Act.
- Never enter the zone alone without notifying a colleague.
- To make an assessment of this workplace, raise a ticket on ServiceNow.
- Before any cleaning/clearing/work commences in the zone:
- Ensure photos of the damage are taken, if it is safe to do so.
- Contact the relevant safety specialists.
- Ensure the premises are well ventilated.
- Contact the TI piquet (on call team) on +41227672201 to restore electrical installations if necessary.
- Inform building occupants of the problem, share updates on progress, including an all-clear when the area is safe to access.
Chemical
General Information
- Do not cross the cordon
- Even if there is no visual sign of a chemical incident, harmful residues, vapours or contaminated surfaces may be present in the area.
- If ventilation is ongoing, maintain ventilation for your safety until officially stated otherwise. Contact the Building TSO for queries. (Find the TSO details on entrance doors, or by clicking the building on GIS)
- (Find the TSO details on entrance doors, or by clicking the building on GIS)
- Detailed information about specific risks can be found on the HSE Safety Risks webpages.
- In case of any concerns or queries about the safety of the premises, call the CFRS administrative line: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop, Think. Act.
- Never enter the zone alone without notifying a colleague.
- To make an assessment of this workplace, raise a ticket on Service Now.
- Ensure you are wearing suitable Personal Protective Equipment (PPE) for the risks present in the zone.
- Before any cleaning/clearing/work commences in the zone:
- Ensure photos of the damage are taken, if it is safe to do so.
- Contact the relevant safety specialists: chemical.safety@cern.ch.
- Further contacts can be found on hse.cern/safety-risks/chemicals.
- Ventilate the premises well.
- Ensure that there is no release into the environment.
- If there is a risk to water sources: contact the HSE Environment Team. In case of an incident, contact CFRS on +41 2276 74444.
- If you need to relocate a product: the product responsible should move the product and note any inventory changes on CERES. In case of an incident, contact CFRS to move the product, and notify the product responsible.
- If required, submit a cleaning request.
- Inform building occupants of the problem, share updates on progress, including an all-clear when the area is safe to access.
Radiation
General Information
- Do not cross the cordon
- Remember, humans cannot sense radiation. An area may look safe even when there is a significant hazard present.
- Radiation hazards can be serious: follow all instructions given by the TSO, CFRS or RP representatives.
- Radioactive dust or residues, known as contamination, can be unknowingly inhaled or ingested, causing significant harm. Contamination may also be carried on clothes or shoes.
- If you believe you have been in contact with contamination, . If possible, use a “main-pied” contamination detector, available in some buffer zones or by searching HFM in REMUS.
- In case of any concerns or queries about the safety of the premises, call the CFRS administrative line: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Do not enter the zone until RP have carried out an assessment. Contact the Radiation Protection group for an assessment and wait for their advice before proceeding.
- Contact the person who was at the time of the incident for detailed information on the risk.
- Do not enter the zone if there is a risk of contamination being present. Verify with the whether containment is required.
- In all other cases, IF you must enter the zone, plan first to ensure as little time as possible in the hazard area.
- Never enter the zone without the correct dosimeter and adequate Personal Protective Equipment for the hazard present.
- If you need to relocate a radiation source, contact the Radioactive Sources Service. Do not move it yourself.
- After the event, if you need to recover a source, contact GESO (Gestion des Sources Radioactives / Radioactive Source Management) and specify the source required.
- Inform building occupants of the problem, share updates on progress, including an all-clear when the area is safe to access
Pollution
General Information
- Do not cross the cordon
- Even if there is no visual sign of a chemical incident, be aware of harmful residues, vapours or contaminated surfaces.
- Do not remove or disturb any pump, rerouting, barriers or collecting tools at the scene.
- In case of any concerns or queries about the safety of the premises, call the CFRS administrative line: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Contact ENV-Prevention@cern.ch or guidance and any questions or concerns.
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop, Think. Act.
- Never enter the zone alone without notifying a colleague.
- Do not remove or disturb any pump, rerouting sign, barriers or collecting tools until authorised. If in doubt contact SCE-SAM External works, HSE-ENV Environmental Protection, or the CFRS administrative number above.
- If necessary, inform building occupants or people nearby of the problem, share updates on progress, including an all-clear when the area is safe to access.
Animals & Green Spaces
General Information
- Do not cross the cordon
- Keep your distance from animals and insects, including those who may be injured or in destress, to avoid further risks to the animal or yourself.
- Fallen or unstable trees: respect the cordon and stay vigilant for unstable ground, branches or other falling trees in the area. Do not try to move a fallen tree yourself, contact the CFRS to remove a fallen tree or unblock a road.
- Keep your distance from products like pesticides. Contact the Green Spaces team for precautions or advice.
- For bees or hornets and nest removal, call the CFRS administrative line: +41 22 76 74848. DO NOT kill them unless told.
- Inform the CFRS or Green Spaces team of animals in distress or in places they should not be.
- If you feel unsafe, are hurt, or experience a reaction to a bite or sting, call the CFRS for medical treatment on +41 22 76 74444
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact ENV-Prevention@cern.ch
- Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Seek advice from SCE-SAM-CE:
- For any outdoor incident, contact Green Spaces (external works).
- For blinds/windows/facades contact Facades service.
- For roof spaces (exterior/interioir) contact the roofing service.
- For flooding or fallen trees, call the CFRS administrative line for assistance: +41 22 76 74848.
- For fencing/cordon/marking call the CSA on +41 76 76 666.
- If required, submit a cleaning request.
- If required, contact building users etc. to inform them of the problem. Give updates as necessary.
- If outside of SCE working hours and not urgent, call the CFRS administrative number: +41 22 76 74848.
Lifts and Lifting Equipment
General Information
- Do not cross the cordon
- Only the CFRS are authorised to reactivate a lift that has been stopped due to an incident or intervention.
- Never pass under or near to a suspended load.
- Never attempt to use a lift that is out of order.
- Never attempt to help anyone exit or enter a lift that is out of order. Call the CFRS for assistance.
- If you become trapped in a lift, use the emergency button or/and contact the CFRS.
- All lifts should have a QR code sticker with an email for non-urgent lift support. Follow the instructions from that QR code.
- In case of any concerns or queries about the safety of the premises, call the CFRS administrative line: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you want an update on a lift that is out of order, contact Service Desk for normal lifts, or TI for machine lifts. There will be a ticket open which they can inform you of.
- Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- To get in contact with the responsible person for lift support, email: Lifts.support@cern.ch
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop. Think. Act.
- Never enter the zone alone without notifying a colleague.
- If a lift issue needs to be handled urgently – call the Technical Infrastructure (TI) team and ask for a lift mechanic. If the call is made outside opening hours, they will most likely arrive the next working day.
- Inform building users of the issue. Give regular updates, including when the problem is resolved.
Work Tools & Machines
General Information
- In case of any concerns or queries about the safety of the premises, contact the CFRS using the administrative number: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation or a replacement tool/machine, contact your supervisor, the workshop manager, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Contact the OHS piquet (on call team).
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop. Think. Act.
- Never enter the zone alone without notifying a colleague.
- Do not move the equipment until cleared to do so by OHS piquet (on call team).
- Before any cleaning/clearing/work commences in the zone:
- Ensure photos of the affected area/machine are taken when it is safe to do so.
- Verify work can start by contacting the OHS piquet.
Gas
General Information
- Do not cross the cordon
- In case of any concerns or queries about the safety of the premises, contact the CFRS using the administrative number: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop. Think. Act.
- Never enter the zone alone without notifying a colleague.
- To make an assessment of this workplace, raise a ticket on service now.
- Prior to undertaking any work in the marked zone, contact the relevant safety specialists. These can be found on the relevant page under hse.cern/safety-risks.
Flood
General Information
- Do not cross the cordon.
- Do not enter flood waters, even if they appear shallow. They may hide sharp objects or uneven ground, be connected to live electrical equipment, or contain sewage, pollution, or contamination.
- If you witness a flood in an electrical installation, move to a safe place away from the water, and contact CFRS using the emergency number below.
- In case of any concerns or queries about the safety of the premises, contact the CFRS using the administrative number: +41 22 76 74848
- IF THERE IS AN IMMEDIATE DANGER, CALL THE CFRS EMERGENCY NUMBER ON +41 22 76 74444.
+ What you can do:
- Do not cross the cordon
- If you need access to this area for any reason, including to fetch something, contact the building TSO
(Find the TSO details on entrance doors, or by clicking the building on GIS) - Complete an incident decleration form within 24h of the incident, if not already done.
- If need of relocation, contact your supervisor, Departmental Space Manager or secretariat.
+ Specific additional information for TSOs:
- Before entering this zone, ensure you are aware of the nature of the incident, and the risks present in the zone: Stop. Think. Act.
- Never enter the zone alone without notifying a colleague.
- Do not enter flood waters without appropriate Personal Protective Equipment (PPE). They may hide sharp objects, sewage, pollution, contamination, uneven ground, or be connected to live electrical equipment.
- Do not remain in prolonged contact with water.
- Ventilate the premises well. A Dehumidifier may be necessary.
- Ensure photos of the damage are taken prior to any cleanup work, if it is safe to do so.
- If required, submit a cleaning request.