At CERN, we probe the fundamental structure of particles that make up everything around us. We do so using the world's largest and most complex scientific instruments.
Know more
Who we are
Our Mission
Our Governance
Our Member States
Our History
Our People
What we do
Fundamental research
Contribute to society
Environmentally responsible research
Bring nations together
Inspire and educate
Fast facts and FAQs
Key Achievements
Key achievements submenu
The Higgs Boson
The W boson
The Z boson
The Large Hadron Collider
The Birth of the web
Antimatter
News
Accelerators
At CERN
Computing
Engineering
Experiments
Knowledge sharing
Physics
Events
CERN Community
News and announcements
Official communications
Scientists
Press Room
Press Room submenu
Media News
Resources
Contact
The research programme at CERN covers topics from kaons to cosmic rays, and from the Standard Model to supersymmetry
Dark matter
The early universe
The Higgs boson
The Standard Model
+ More
CERN's accelerators
The Antiproton Decelerator
High-Luminosity LHC
Accelerating: radiofrequency cavities
Steering and focusing: magnets and superconductivity
Circulating: ultra-high vacuum
Cooling: cryogenic systems
Powering: energy at CERN
The CERN Data Centre
The Worldwide LHC Computing Grid
CERN openlab
Open source for open science
The birth of the web
ALICE
ATLAS
CMS
LHCb
By Topic
By format
360 image
Annual report
Brochure
Bulletin
Courier
Image
Video
By audience
CERN community
Educators
General public
Industry
Media
Students
CHIS is the CERN Health Insurance Scheme.
Further to the official communication on 12 July 2017, please note that a corrected version of the CHIS Rules has been released
The new Rules of the CERN Health Insurance Scheme (CHIS) will come into effect on 1 September 2017
The CHIS will, as of 1 July 2017, reimburse infertility treatments to persons benefiting from its normal health insurance cover
As of January 2017, the contribution rate of active and retired CHIS members will be 4.86%
Information concerning the health insurance of frontalier workers who are family members of a CHIS main member
Certain members of the personnel residing in France have received a letter concerning changes in the health insurance coverage of “frontalier" workers
Amendments to the rules of the cern health insurance scheme (CHIS) - 1 January 2012 edition
Follow the action at the ICTR-PHE conference via the conference blog
Changes to the status of people resident in France but working in Switzerland
On 28 April each year, the International Labour Organization and the World Health Organization organise a World Day for Safety and Health at Work