Conditions of access to the fenced parts of the CERN site

https://cds.cern.ch/record/2109697/files/CERN_Circ_Op_En_No2_Rev3.pdf 

Annexes mesures of application

https://cds.cern.ch/record/2109697/files/CO2_Rev3_Annexes_MesuresApplication_Fr_1.1.09.2019.pdf