All requests for CMS invitation letters for VISA and for Institute purposes, should be placed via the CMS Secretariat Invitation Letters website.

The request will be handled by the CMS Secretariat as soon as possible and the letter (and the relevant documents were applicable) will be sent back to you.

On the main page, please read the instructions and select the invitation letter you need from the menu on the right.

Please note that the website works only with an active CERN account.

If you have a CERN account but you still cannot access the site, please contact the CMS Secretariat.

If you don't have a CERN account, please register your account as CERN Lightweight account following the instructions on the CERN Account Management main page and, once registered, send a confirmation to the CMS Secretariat.

Due to the exceptional circumstances, we invite you to Contact us before submitting your request. We also invite you to take careful note of the CERN host State entry requirements as detailed here.