HowTo Register (online registration - processing time about 2 weeks)

As a guest, you will have to register, before coming to GSI/FAIR.

Before filling the online form, you should contact the hosting department (secretaries) to make sure the given details are accurate .

The maximum duration of the Guest Agreement is 5 Years (Subject to extention).

Please start your registration (<- LINK TO FORM) at least 2 weeks before travelling to GSI.

Complete the electronic registration form and upload scans of:

  1. your ID and
  2. a signed GSI / FAIR Home Institution Declaration (see upload center on the right) or a GSI / FAIR Self Declaration in case you are a student, scholar or receiving a retirement pension.
    • The Home Institution Declaration (HID) must be completed and signed by an authorized representative of the your home institution. More information here: HowTo HID
    • In case you don’t know yourself if you need the GSI or FAIR Home Institution or Self Declaration, please contact your Local Contact Person.


What happens next

After you have filled and submitted your online registration:

  1. You will receive an email acknowledging the entry of your pre-registration
  1. The "local contact person" will check, complete (if necessary) and confirm (or deny) your registration request.
    Information for the "local contact person".
  2. The Welcome Office will check and approve (or deny) your registration.
  3. You will receive an email about the status and next steps, including:
    • partly filled GSI / FAIR guest agreement to complete
    • GSI Weblogin, and password in separate mail (except if you already have one)
    • classes on Data Protection are only necessary if your stay is longer than 3 months, otherwise you will receive a link to the online Data Protection form
    • link to our General Safety Instructions
  4. Please upload the completed and signed scan of the guest agreement to the provided link including all necessary requested attachments  (like visa, health insurances for those coming from non EU or Schengen countries)
  5. We will inform you and your Local Contact Person once everything is completed, we have countersigned your Guest Agreement and have prepared your access card.
    • To enter GSI's campus you need to identify yourself at the Main Gate, where you will receive your GSI / FAIR Access Card (Only available if the Registration process was completed).
    • Please inform your local contact person about (your arrival plans) at GSI / FAIR.
  6. In case changes occur please send an email to welcome-office(at) (e.g. change of institute, extension, or update on documents).

More information on the documents

The Home Institution Declaration (HID) must be completed and signed by an authorized representative of the person's home institution.


You will receive your GSI or FAIR Guest Agreement via the registration system..

Change or Update

If you need to change/update an existing registration please send an email with the relevant information to: welcome-office(at)

Some scenarios:

  • Extending stay:  new Home Institution Declaration, resign the updated pre-filled Guest Agreement, which you will receive from us. No need to register again
  • New Local Contact Person: Email is enough, please inlclude former and new Local Contact Person
  • New Home Institution: Please provide new Home Institution Declaration