The AA group is in charge of the specification, engineering,  installation and maintenance of the systems that ensures the safety of the CERN Personnel, Users and Visitors, on all its site and facilities.

The Safety Systems concern:

• Fire and Gas/ODH detection,  emergency phones and evacuation, alarm transmission and monitoring,
• Interlocks to protect people radioactivity, X rays, lasers, electricity and cryogenics hazards,
• Access control to all CERN conventional or nuclear facilities and sites,
• Video surveillance, protection and intrusion detection,
• Access data management applications.