# \[SIP1.1\] Onboard USDC Vault onto Arbitrum

**URL:** <https://forum.summer.fi/t/sip1-1-onboard-usdc-vault-onto-arbitrum/89>\
**Category:** Summer Improvement Proposals \[SIPs\]\
**Tags:** vault-onboarding, sip1, usdc, arbitrum\
**Created:** [February 20, 2025, 12:07pm UTC](https://forum.summer.fi/t/sip1-1-onboard-usdc-vault-onto-arbitrum/89 "2025-02-20T12:07:35Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![jensei](https://yyz1.discourse-cdn.com/flex009/user_avatar/forum.summer.fi/jensei/32/69_2.png) [@jensei](https://forum.summer.fi/u/jensei)\
**Post date:** [November 28, 2025, 4:41pm UTC](https://forum.summer.fi/t/sip1-1-onboard-usdc-vault-onto-arbitrum/89/7 "2025-11-28T16:41:51Z")

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The following proposal [SIP1.1.1] was posted onchain, as an aftermath of the [[SIP2.39]](https://forum.summer.fi/t/sip2-39-offboard-the-silo-susdx-usdc-127-market-from-the-arbitrum-usdc-vault-using-sweep-via-timelock/465) and the removal of the Silo susdx/usdc (127) market from the Arbitrum USDC; as well as the reaction to [[RFC]](https://forum.summer.fi/t/rfc-arbitrum-usdc-vault-next-steps-dealing-with-usdx-bad-debt/458) on Arbitrum USDC next steps:

> [@\[RFC\] Arbitrum USDC Vault next steps (Dealing with USDX bad debt)](https://forum.summer.fi/t/rfc-arbitrum-usdc-vault-next-steps-dealing-with-usdx-bad-debt/458/1):
>
> - Should a new USDC market be deployed on Arbitrum?

VOTE: [Lazy Summer DAO (Official) | SIP1.1.1: Onboard Updated USDC Vault onto Arbitrum](https://gov.summer.fi/dao/proposal/52925257543189738089443257407007146142703242961048194472582326528717714255529)

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