> For the complete documentation index, see [llms.txt](https://cee-systems.gitbook.io/tcp/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cee-systems.gitbook.io/tcp/overview/how-to-switch-between-pccs.md).

# How to switch between PCCs

Once the registration is complete, each TCP user is assigned with access credentials. Using these credentials, the user can log in to a PCC and proceed with the exchange process in their default PCC.

The default PCC is displayed under your profile in upper right header section. 

<figure><img src="https://2703445587-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LDpSnMrEGo2nnLMQ8Se%2Fuploads%2FbtIQRcKJRn6TlYeTSruo%2FSwitching%20PCCs.png?alt=media&amp;token=a42da249-643a-42b9-84ca-c03abd374d93" alt=""><figcaption></figcaption></figure>

If you want to use multiple PCCs in TCP, you need to add your extra PCCs one by one as described in the *PCC activation* section.

After your extra PCC has been successfully added, you can change your default PCC by selecting alternative an PCC in the drop-down menu:

<figure><img src="https://2703445587-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LDpSnMrEGo2nnLMQ8Se%2Fuploads%2FrAH3ml89lChIWn98J7e9%2FRoling%20PCCs.png?alt=media&amp;token=eb863488-938f-4b74-a045-7b691d41beb9" alt=""><figcaption></figcaption></figure>