> For the complete documentation index, see [llms.txt](https://docs.bancor.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bancor.network/developer-guides/read-functions/surplus-whitelist.md).

# Surplus whitelist

Prior to calling the [withdrawPOL()](/developer-guides/write-functions/surplus-migration/withdrawpol.md) function, it is recommended to check if the token is part of the DAO approved whitelist