Arrival Procedures

First-time Users must first get registered and complete the online training courses prior to arrival at SLAC. Follow the instructions here.

Visitors: If you are just visiting SLAC and are not a user (that is, someone affiliated with an accepted experiment at FACET-II), you need to be invited by a SLAC employee who will arrange the site visit by filling out the site entry request form. ID will be required by the security guards on the Sand Hill Gate.

Please feel free to provide feedback on VUE center experience.

Planning your arrival (first and repeat visits)

Each individual must check that the information in their profile in the User Portal is up-to-date and check that they have completed their assigned training ( If they do not have an account, they must register. Review the information on the webpage in the "Before you arrive" section (

There are new requirements for Foreign Nationals. See the  "Before you arrive" section ( for details. Expect delays at the badging office.

The Covid-related instructions on this page assume that you are vaccinated.

Notify your Facility POC and the FACET-II User Manager (Christine Clarke) once you know your travel plans and share the details (arrival date-time, departure date-time). Often the Principal Investigator or single POC for an experiment does this for all participants at once (this is preferred).
The FACET-II User Manager will schedule practical training sessions to coincide with your arrival as is necessary. Please organize this directly with the FACET-II User Manager through a single POC per experiment team.

Verify that you have a SLAC windows account and it works to access the health check tool. You will need to use this if you feel unwell with potential covid symptoms when you are at SLAC. 

Arrival - Picking up your badge and dosimeter

Review “while you are here” information on the User Portal ( Upon arriving at SLAC, show photo identification to Security at the Main Gate on Sand Hill Road and check-in User Office in the VUE Center ( If you are not a US citizen, you will need to show original passport and visa documents and your CV.

You will need to prove vaccination status. Original documents are not required- a photograph or copy would suffice.

Outside of working hours, you can usually get a temporary badge and/or dosimeter at the Main Gate if we have advance notice and have already verified immigration documents and pre-signed the form A. The form A can be accessed here. Send this to the FACET-II User Manager Christine Clarke( with your expected arrival time. She will send you back the signed copy. Print it off and bring it with you to the Main Gate. You won't be allowed on site without a badge outside of working hours.

Once your training and documentation is verified at the VUE center (building 53), you will be issued a badge and dosimeter.

Covid Testing and Social Distance after travelling to SLAC

When on site, you are required to be tested once per week through our Color program. We request that you take a test on day one of your arrival and then on day five after your travel to SLAC (at a minimum- you may take more tests if you like, there is no limit). After that, get tested at least once per week (even if you only come on site one day a week). You will be enrolled in our testing program when you arrive and you can both pick up and drop off kits in B053 (near the badging office). Until the second negative test result, please keep distance (6 ft/ 2 m) from other people to the extent possible. International travellers are encouraged to arrive a week in advance of scheduled tunnel work as this social distance is hard to maintain and the risks from international travel are heightened. However, you are not prevented from coming on site. Domestic travellers may also wish to consider early arrival.

Ready to Work

Don't forget to complete the on-site practicals and to get your site orientation before working inside FACET-II. Your facility POC will be able to give the site orientation and confirm that you are allowed to begin work.

Leaving us? Follow our exit procedure...