# Whitelisting

Addresses are whitelisted using the batch whitelist or whitelist function. These are owned and run by the veriface DAO which enables the process to be completely decentralized.

```
function whitelist(address userAddress) external;

function batchwhiteList(address[] memory userAddresses) external;
```

 Implementing the Veriface interface whitelist function allows the implementing contract to refuse service to non-whitelisted addresses that interact with a specific contract function

```
function requireAddressWhiteListed(address sender, bool refuseService) external view
```


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