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TUNNEL ACCESS: How do I access FACET during downtime?

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How do I access FACET during downtime?


​How do I access FACET during downtime?


When FACET is in downtime it is usually but not necessarily in permitted access. We may lock FACET for reasons such as electrical outages, safety system testing or for certification purposes. In addition, there may be activities going on inside FACET that are incompatible with general access such as electrical work or class 4 laser work.

Please see information below about entering and working in FACET during the downtime assuming FACET is in permitted access.


Do I have to be RWT1 or GERT?


FACET is usually a Radiation Area. You need to have RWT1 (up-to-date!) to enter. You need to sign the area RWP.

Remember that anything taken out needs to get surveyed.

It may be de-posted to a RCA in some circumstances. Please pay attention to the signage and remember your GERT and RWT safety training. Even when it is deposted, you need to be RWT trained to do any work. GERTs can enter FACET but they cannot handle any material when FACET is deposted to an RCA.



Is Area Manager release needed or not?


Green work is released in FACET if you...

 – Always follow the AHA (displayed at the entrance), 

– Remember your training (you should have course AD103 or equivalent training in FACET hazards or be escorted by someone that has),

 –Observe ongoing activities in the area in the event hazards may be present which require your attention.

You do not need further release from the Area Manger if this is followed.


Yellow work (non-observational work/work with tools):

Come to Christine Clarke if you have any non-green work to perform. Work that is done in FACET still requires Area Manager approval. Cell phones are listed in the directory if you are on the SLAC network (use VPN if you are offsite or on the visitor net).

Non-routine tasks or tasks with safety risks need a procedure. See separate question on procedure writing.

All "yellow" work in FACET is documented by Christine in the CATER system. It also needs a radiological review so please let me know how many people for how many hours.

Downtime jobs should be submitted as soon as possible. At the very latest, the Thursday before the week in which you want to do the work. Depending on the job, it may or may not be easy to schedule.

There will be a meeting before work gets started for work release and safety briefings.



Large groups of visitors, tour groups, photo opportunities and equivalent activities require a release from Al Owens.


Work Planning and Control training (course 120):

Access Requirements (GERT 115 and RWT1 116 training):​ 


Version: 5.0
Created at 8/6/2013 12:08 PM by Clarke, Christine
Last modified at 7/17/2014 6:20 PM by Clarke, Christine

SLAC SLAC National Accelerator Laboratory, Menlo Park, CA
Operated by Stanford University for the U.S. Dept. of Energy