As with most applications behind a Single-Sign On (SSO), there is no dedicated _Logout_ option.
Your RegApp session will end automatically after a set amount of time (currently about 15 minutes), at which point you will need to refresh the page and select your home-organization again. Usually, this does not require you to refresh your SSO session.
For more information about the SSO Logout, refer to [the ITC.help center FAQ](https://help.itc.rwth-aachen.de/en/service/rhb2fhkpjhb7/faq/#39f5231b11e34590b8d434a0d2276466) on the topic.
