Fed stablecoin rule triggers 48-hour liquidation window for reserve shortfalls
In brief
- Fed requires 24-hour notice when stablecoin reserves fall below outstanding tokens
- Liquidation must begin by 5 p.m. next business day—under 48-hour window
- Issuers can mint tokens during rescue period to avoid on-chain distress signals
- OCC proposal allows 15 business days before mandatory liquidation, contrasting Fed timeline
The Liquidation Clock
Unless it closes the gap or the Fed directs it to proceed with that plan, the issuer must begin liquidating reserves and redeeming tokens by 5 p.m. on the next business day. The Fed says that window comes to less than 48 hours in many cases. Once liquidation begins, minting stops and redemption fees are prohibited. This stands in contrast to ordinary conditions, where a separate Fed rule requires honoring redemption requests within two business days.
The 392-page proposal requires reserve assets to equal or exceed outstanding tokens at all times. Issuers must formally record fair value at least once daily at 5 p.m. in the supervising Federal Reserve Bank's time zone. The rules also allow issuers to continue minting new tokens during the rescue window—a provision designed to avoid signaling distress on-chain, which could accelerate the very run the rules aim to prevent.
How Other Regulators Compare
The Office of the Comptroller of the Currency took a different approach in its March proposal. Under OCC rules, an issuer falling below minimum reserves must stop net new issuance immediately. However, mandatory liquidation would only kick in if the shortfall persisted for 15 consecutive business days, a period the OCC could extend. This gives issuers far more time to recover than the Fed's framework.
The Fed's rules govern the issuers it supervises, while the OCC and state regulators oversee other issuers under the GENIUS Act.
Real-World Reserve Dynamics
To understand the pressure these rules create, consider USDC. As of September 21, USDC had $74.6 billion in circulation against $74.8 billion in reserves. Over the prior 30 days, Circle issued $40.2 billion and redeemed $39 billion, a gross flow of $79.2 billion that exceeds total circulation. High turnover in stablecoin markets means reserve coverage can tighten quickly.
