# \[RFC\] eUSD Unregister Unused Assets-Cleanup **URL:** \ **Category:** eUSD RFC\ **Created:** [August 11, 2024, 4:02pm UTC](https://forum.reserve.org/t/rfc-eusd-unregister-unused-assets-cleanup/880 "2024-08-11T16:02:22Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![Sawyer](https://dub1.discourse-cdn.com/flex005/user_avatar/forum.reserve.org/sawyer/32/187_2.png) [@Sawyer](https://forum.reserve.org/u/Sawyer)\ **Post date:** [August 11, 2024, 4:02pm UTC](https://forum.reserve.org/t/rfc-eusd-unregister-unused-assets-cleanup/880/1 "2024-08-11T16:02:22Z")
**Summary** This proposal unregisters old contract addresses that are no longer used in eUSD. These types of proposals can happen after a collateral basket change or a major protocol upgrade. In the case of eUSD, there was a recent collateral basket change proposal that was executed as well as a protocol version upgrade to 3.4.0. Assets to be unregistered: saUSDC: 0xc4240D22FFa144E2712aACF3E2cC302af0339ED0(older version) saUSDT: 0x8d753659D4E4e4b4601c7F01Dc1c920cA538E333 saEthPyUSD: 0x58a41c87f8C65cf21f961b570540b176e408Cf2E **Abstract** The proposed proposal, if enacted, would unregister Aave USDT(saUSDT), Aave USDC(saUSDC) and Aave pyUSD(saEthPyUSD). These addresses are no longer being used. **Problem Statement** eUSD just completed a collateral basket change update and a protocol version upgrade to 3.4.0, and there are contract addresses that are no longer being used but still tied to eUSD. **Rationale** By removing old unused contract addresses, this improves the gas efficiency of eUSD. **Risks** There are no associated risks by removing the unused contract addresses. It is important to run all revenue auctions associated with the contract addresses before unregistering them. ![Untitled (200 x 200 px) (1)](https://europe1.discourse-cdn.com/flex005/uploads/reserve/original/1X/32dc6bac0030ad32505ec5473e8723bae31d2ae7.png) _Poll ([view on site](https://forum.reserve.org/t/rfc-eusd-unregister-unused-assets-cleanup/880/1))_