To get access to the LHC tunnel one needs to have the corresponding "Training Ranks" (before the change, the formal requirement was to have followed certain safety courses)
Effectively, the ranks are a "layer" on top of the safety courses. One gets a specific rank by following one or more safety courses
The idea is to provide better flexibility when there is a change in the safety courses. E.g. 2 different safety courses can provide the same rank. If one course becomes obsolete or is replaced, this does not have impact on the persons's rank or access rights
LHC - Machine (replaces "Safety during LS1", which on its turn was a replacement of "Specific Risks (Level 3)" and "LHC Machine (Level 4)" during the LS1 period)
Radiation Protection (this course is mandatory to obtain a personal dosimeter) It is a classroom course. To register for the course:
Go to cta.cern.ch
In the field "Course or Competency" type "radiation protection"
Click on "Radiation Protection - Controlled Area - CERN Employees and Associates" (or the one relevant to you) and sign-up for the course via EDH
Self-rescue (aka biocell or oxygen) mask training It is a classroom course + a practical exercise. To register for the course:
Go to cta.cern.ch
In the field "Course or Competency" type "rescue mask"
Click on "Self-Rescue Mask - Initial" and sign-up for the course
If you are not sure which courses you still need in order to access the LHC tunnel: follow the steps described here. Note that the old courses are not shown on SIR, and that one is not obliged to follow the new "replacing" courses. For example, you have followed "Basic Safety (Levels 1 and 2)" some time ago. Now on the SIR webpage you will not see this course (it does not exist anymore), while the new "replacing" course "CERN Safety Introduction" will appear as "not taken". Still, the fact that you have a valid "Basic Safety (Levels 1 and 2)" is known by the system, i.e. you do not need to follow the new course in order to get access to the tunnel.
EDH access authorization
Access authorization should be requested after the safety courses above have been attended. Access can be requested via EDH
Fill-in an EDH request for accessing zone "LHC-TNL"