The CERN Safety Rule listed below has been published on the CERN website dedicated to the Safety Rules:

Safety Guideline SG-FS-2-1-1 (revised version)

The Guideline complements the specific Safety Instruction SSI-FS-2-1 “Fire Safety and Radiation Resistance requirements for Cables” published in December 2021. It provides guidance as to the implementation of SSI-FS-2-1 in particular with regard to the certification and selection of Cable materials. The Guideline has been updated to define the conditions under which the HSE Unit accepts exceptions to Safety requirements with respect to fire performance of certain types of Cables. 

The CERN Safety Rules apply to all persons under the Director General’s authority. They are available under the following link: http://www.cern.ch/safety-rules.