# UMIP 17 -Add rDAI as a collateral currency

**URL:** <https://discourse.uma.xyz/t/umip-17-add-rdai-as-a-collateral-currency/1428>\
**Category:** technical UMIPs\
**Created:** [March 2, 2022, 12:49pm UTC](https://discourse.uma.xyz/t/umip-17-add-rdai-as-a-collateral-currency/1428 "2022-03-02T12:49:05Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mhairi](https://yyz2.discourse-cdn.com/flex032/user_avatar/discourse.uma.xyz/mhairi/32/48_2.png) [@Mhairi](https://discourse.uma.xyz/u/Mhairi)\
**Post date:** [March 2, 2022, 12:49pm UTC](https://discourse.uma.xyz/t/umip-17-add-rdai-as-a-collateral-currency/1428/1 "2022-03-02T12:49:05Z")

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This UMIP will add rDAI (redeemable Dai) to the supported collateral currencies to the AddressWhitelist contract, allowing UMA users to mint synthetics using rDAI as the collateral currency. This UMIP will also add a flat final fee to charge per-request. The proposed final fee is 400 rDAI per request.

> <https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-17.md>